R101.1 Insert: City of Moscow Mills.
|
R105.2 Work exempt from permit. Permits shall not
be required for the following:
| |
1.
|
One-story detached accessory structures used as tool and storage
sheds, playhouses and similar uses, provided the floor area does not
exceed 200 square feet.
|
2.
|
Fences 24 inches or less in height and fences taller than 24
inches in height located in the agricultural district, excluding platted
subdivisions in said district.
|
3.
|
Retaining walls that are not over 4 feet (1,219 mm) in height
measured from the adjacent grade, unless supporting a surcharge.
|
4.
|
Water tanks supported directly upon grade if the capacity does
not exceed 5,000 gallons and the ratio of height to diameter or width
does not exceed 2 to 1.
|
5.
|
Sidewalks and driveways.
|
6.
|
Painting, papering, tiling, carpeting, cabinets, counter tops
and similar finish work.
|
7.
|
Prefabricated swimming pools that are less than 24 inches deep.
|
8.
|
Swings and other playground equipment.
|
9.
|
Window awnings supported by an exterior wall that do not project
more than 54 inches from the exterior wall and do not require additional
support.
|
10.
|
Decks not exceeding 200 square feet in area, that are not more
than 30 inches above grade at any point, are not attached to a dwelling,
and do not serve the exit door required by Section R311.4.
|
11.
|
Flag poles 40 feet or less in height.
|
12.
|
Replacement of doors and windows where the opening size is not
increased or decreased.
|
Electrical:
| |
1.
|
Listed cord-and-plug connected temporary decorative lighting.
|
2.
|
Reinstallation of attachment plug receptacles but not the outlets
therefor.
|
3.
|
Replacement of branch circuit overcurrent devices of the required
capacity in the same location.
|
4.
|
Electrical wiring, devices, appliances, apparatus or equipment
operating at less than 25 volts and not capable of supplying more
than 50 watts of energy.
|
5.
|
Minor repair work, including the replacement of lamps or the
connection of approved portable electrical equipment to approved permanently
installed receptacles.
|
Gas:
| |
1.
|
Portable heating, cooking or clothes drying appliances.
|
2.
|
Replacement of any minor part that does not alter approval of
equipment or make such equipment unsafe.
|
3.
|
Portable-fuel-cell appliances that are not connected to a fixed
piping system and are not interconnected to a power grid.
|
Mechanical:
| |
1.
|
Portable heating appliances.
|
2.
|
Portable ventilation appliances.
|
3.
|
Portable cooling units.
|
4.
|
Steam, hot- or chilled-water piping within any heating or cooling
equipment regulated by this code.
|
5.
|
Replacement of any minor part that does not alter approval of
equipment or make such equipment unsafe.
|
6.
|
Portable evaporative coolers.
|
7.
|
Self-contained refrigeration systems containing 10 pounds or
less of refrigerant or that are actuated by motors of 1 horsepower
(746 W) or less.
|
8.
|
Portable-fuel-cell appliances that are not connected to a fixed
piping system and are not interconnected to a power grid.
|
Plumbing:
| |
1.
|
The stopping of leaks in drains, water, soil, waste or vent
pipe; provided, however, that if any concealed trap, drainpipe, water,
soil, waste or vent pipe becomes defective and it becomes necessary
to remove and replace the same with new material, such work shall
be considered as new work and a permit shall be obtained and inspection
made as provided in this code.
|
2.
|
The clearing of stoppages or the repairing of leaks in pipes,
valves or fixtures, and the removal and reinstallation of bathrooms,
provided such repairs do not involve or require the replacement or
rearrangement of valves, pipes, or lines.
|
3.
|
Fixture replacement with similar fixtures, not including water
heaters, where plumbing connections are not relocated.
|
R105.5 Expiration. Every permit issued shall become
invalid and expired unless the work on the site authorized by such
permit is commenced within 180 days after its issuance, or if the
work authorized on the site by such permit is suspended or abandoned
for a period of 180 days after the time the work is commenced. The
building official is authorized to grant, in writing, one or more
extensions of time, for periods not more than 180 days each. The extension
shall be requested in writing and shall be granted only upon a showing
of justifiable cause and substantial progress. If a permit expires
pursuant to this provision, the building official may issue a new
permit upon advance payment of an administrative penalty of the original
permit fee or $100, whichever is less. The reissued permit must be
picked-up within seven days of the issued date.
|
R106.1 Submittal documents. Submittal documents
consisting of construction documents, statement of special inspections,
geotechnical report and other data shall be submitted as required
by the building official with each permit application. The construction
documents shall be prepared by a registered design professional only
where required by the statutes of the jurisdiction in which the project
is to be constructed. Where special conditions exist, the building
official is authorized to require additional construction documents
to be prepared by a registered design professional.
|
Exception: The building official is authorized
to waive the submission of construction documents and other data not
required to be prepared by a registered design professional if it
is found that the nature of the work applied for is such that reviewing
of construction documents is not necessary to obtain compliance with
this code.
|
R106.3.1 Approval of construction documents. Where
the building official issues a permit, the construction documents
shall be approved in writing or by a stamp that states "REVIEWED FOR
CODE COMPLIANCE." One set of construction documents so reviewed shall
be retained by the building official. The other set shall be returned
to the applicant, and must be kept at the site of work or made available
at time of inspection by the building official.
|
R106.90 Electronic submission. Where design documents
including, but not limited to, plot plans, site plans, design drawings,
specifications, etc. are created electronically, the building official
is authorized to require electronic submittal of documents in a portable
document format (PDF) or similar format for review.
|
R108.6 Work commencing before permit issuance. Any
person who commences work requiring a permit before obtaining the
necessary permits shall be subject to a fee established by the City
that shall be in addition to the required permit fees.
| |
Exceptions:
| |
1.
|
Rough grading less than 5,000 square feet, not to include excavating
for basements.
|
2.
|
Staking and other similar preparatory actions.
|
R109.90 Workmanship. All work shall be executed
in a workmanlike and skilled manner so that, for example, floors are
level, walls are plumb and square, windows and doors are plumb, square
and easily operable, exterior building envelopes are weather-tight
and exclude the elements, building materials are undamaged, and surfaces
are unmarred. All work performed shall be in compliance with this
code, per industry standards, and in accordance with the manufacturer's
installation instructions.
|
R112 Board of Appeals. Delete in entirety and add: Appeals under the Residential Code shall be governed by the provisions pertaining to appeals Section 113, of § 39.004 above.
|
Sections 112.2, 112.3, and 112.4 are deleted in their
entirety.
|
R113.4 Violation penalties. Any person who violates
a provision of this code or fails to comply with any of the requirements
thereof or who erects, constructs, alters or repairs a building or
structure in violation of the approved construction documents or directive
of the building official, or of a permit or certificate issued under
the provisions of this code, shall be guilty of a misdemeanor and
upon conviction thereof shall be punishable by a fine of not more
than $500 or by imprisonment for a term not exceeding 90 days, or
by both such fine and imprisonment, and each day's continuance
of a violation shall be deemed a separate offense. Under no circumstances
shall any person's sentence be greater than any limit established
by Missouri statutes for the same offense.
|
R114.1 Issuance. The stop work order shall be in
writing and shall be given to the owner of the property involved,
the owner's authorized agent, or the person performing the work.
Upon issuance of a stop work order, the cited work shall immediately
cease. The stop work order shall state the reason for the order and
the conditions under which the cited work will be permitted to resume.
|
Table R301.2(1)
| |
---|---|
Climatic and Geographic Design Criteria
| |
GROUND SNOW LOAD
|
20 PSF
|
WIND DESIGN
| |
- Speed
|
115 MPH
|
- Topographic effects
|
No
|
- Special wind region
|
No
|
- Wind-borne debris zone
|
No
|
SEISMIC DESIGN CATEGORY
|
SDC C
|
SUBJECT TO DAMAGE FROM
| |
- Weathering
|
Severe
|
- Frost line depth
|
30 inches
|
- Termite
|
Moderate to Heavy
|
WINTER DESIGN TEMP
|
6° F.
|
ICE BARRIER UNDERLAYMENT REQUIRED
|
No
|
FLOOD HAZARDS
|
(See Floodplain Ordinance)
|
AIR FREEZING INDEX
|
963
|
MEAN ANNUAL TEMP
|
55° F.
|
For SI: 1 pound per square foot = 0.0479 kPa, 1 mile per hour
= 0.447 m/s.
|
a.
|
Weathering may require a higher strength concrete or grade of
masonry than necessary to satisfy the structural requirements of this
code. The weathering column shall be filled in with the weathering
index, "negligible," "moderate" or "severe" for concrete as determined
from Figure R301.2(3). The grade of masonry units shall be determined
from ASTM C 34, C 55, C 62, C 73, C 90, C 129, C 145, C 216 or C 652.
|
b.
|
The frost line depth may require deeper footings than indicated
in Figure R403.1(1). The jurisdiction shall fill in the frost line
depth column with the minimum depth of footing below finish grade.
|
c.
|
The jurisdiction shall fill in this part of the table to indicate
the need for protection depending on whether there has been a history
of local subterranean termite damage.
|
d.
|
The jurisdiction shall fill in this part of the table with the
wind speed from the basic wind speed map Figure R301.2(4)A. Wind exposure
category shall be determined on a site-specific basis in accordance
with Section R301.2.1.4.
|
e.
|
The outdoor design dry-bulb temperature shall be selected from
the columns of 97 1/2% values for winter from Appendix D of the
International Plumbing Code.
|
Deviations from the Appendix D temperatures shall be permitted
to reflect local climates or local weather experience as determined
by the building official.
| |
f.
|
The jurisdiction shall fill in this part of the table with the
seismic design category determined from Section R301.2.2.1.
|
g.
|
The jurisdiction shall fill in this part of the table with (a)
the date of the jurisdiction's entry into the National Flood
Insurance Program (date of adoption of the first code or ordinance
for management of flood hazard areas), (b) the date(s) of the Flood
Insurance Study and (c) the panel numbers and dates of the currently
effective FIRMs and FBFMs or other flood hazard map adopted by the
authority having jurisdiction, as amended.
|
h.
|
In accordance with Sections R905.1.2, R905.4.3.1, R905.5.3.1,
R905.6.3.1, R905.7.3.1 and R905.8.3.1, where there has been a history
of local damage from the effects of ice damming, the jurisdiction
shall fill in this part of the table with "YES." Otherwise, the jurisdiction
shall fill in this part of the table with "NO."
|
i.
|
The jurisdiction shall fill in this part of the table with the
100-year return period air freezing index (BF days) from Figure R403.3(2)
or from the 100-year (99%) value on the National Climatic Data Center
data table "Air Freezing Index-USA Method (Base 32° F.)."
|
j.
|
The jurisdiction shall fill in this part of the table with the
mean annual temperature from the National Climatic Data Center data
table "Air Freezing Index- USA Method (Base 32° F.)."
|
k.
|
In accordance with Section R301.2.1.5, where there is local
historical data documenting structural damage to buildings due to
topographic wind speed-up effects, the jurisdiction shall fill in
this part of the table with "YES." Otherwise, the jurisdiction shall
indicate "NO" in this part of the table.
|
l.
|
In accordance with Figure R301.2(4)A, where there is local historical
data documenting unusual wind conditions, the jurisdiction shall fill
in this part of the table with "YES" and identify any specific requirements.
Otherwise, the jurisdiction shall indicate "NO" in this part of the
table.
|
m.
|
In accordance with Section R301.2.1.2.1, the jurisdiction shall
indicate the wind-borne debris wind zone(s). Otherwise, the jurisdiction
shall indicate "NO" in this part of the table.
|
R302.1 Exterior walls. Construction, projections,
openings and penetrations of exterior walls of dwellings and accessory
buildings shall comply with Table R302.1(1); or dwellings equipped
throughout with an automatic sprinkler system installed in accordance
with Section P2904 shall comply with Table R302.1(2).
| |
Exceptions:
| |
1.
|
Walls, projections, openings or penetrations in walls perpendicular
to the line used to determine the fire separation distance.
|
2.
|
Walls of dwellings and accessory structures located on the same
lot.
|
3.
|
Detached tool sheds and storage sheds, playhouses and similar
structures exempted from permits are not required to provide wall
protection based on location on the lot. Projections beyond the exterior
wall shall not extend over the lot line.
|
4.
|
Detached garages accessory to a dwelling located within 5 feet
of a lot line are permitted to have roof eave projections not exceeding
4 inches.
|
5.
|
Foundation vents installed in compliance with this code are
permitted.
|
6.
|
Cantilevered manufactured fireplaces protected with 5/8 Type
X gypsum.
|
7.
|
Uncovered decks.
|
R302.2 Townhouses. Common walls separating townhouses
shall be assigned a fire-resistance rating in accordance with Section
R302.2, Item 1 or 2. The common wall shared by two townhouses shall
be constructed without plumbing or mechanical equipment, ducts or
vents in the cavity of the common wall. The wall shall be rated for
fire exposure from both sides and shall extend to and be tight against
exterior walls and the underside of the roof sheathing. Electrical
installations shall be in accordance with Chapters 34 through 43.
Penetrations of the membrane of common walls for electrical outlet
boxes shall be in accordance with Section R302.4.
| |
1.
|
Where a fire sprinkler system in accordance with Section P2904
is provided, the common wall shall be not less than a 1-hour fire-resistance-rated
wall assembly tested in accordance with ASTM E 119 or UL 263.
|
2.
|
Where a fire sprinkler system in accordance with Section P2904
is not provided, the common wall shall be not less than a 2-hour fire-resistance-rated
wall assembly tested in accordance with ASTM E 119 or UL 263, or the
common wall shall be two independent 1-hour fire- resistance-rated
wall assemblies.
|
R302.5.1 Opening protection. Openings from a private
garage directly into a room used for sleeping purposes shall not be
permitted. Other openings between the garage and residence shall be
equipped with solid wood doors not less than 1 3/8 inches (35
mm) in thickness, solid or honeycomb-core steel doors not less than
1 3/8 inches (35 mm) thick, or 20-minute fire-rated doors.
| |
R302.13 Fire protection of floors. Floor assemblies
that are not required elsewhere in this code to be fire resistance
rated, shall be provided with a 1/2-inch (12.7 mm) gypsum wallboard
membrane, 5/8-inch (16 mm) wood structural panel membrane, or equivalent
on the underside of the floor framing member. Penetrations or openings
for ducts, vents, electrical outlets, lighting, devices, luminaires,
wires, speakers, drainage, piping and similar openings or penetrations
shall be permitted. Fire blocking, draft stopping, fire taping, and/or
additional framing is not required.
| |
Exceptions:
| |
1.
|
Floor assemblies located directly over a space protected by
an automatic sprinkler system in accordance with Section P2904, NFPA
13D, or other approved equivalent sprinkler system.
|
2.
|
Floor assemblies located directly over a crawl space not intended
for storage or fuel-fired appliances.
|
3.
|
Portions of floor assemblies shall be permitted to be unprotected
where complying with the following:
|
3.1
|
The aggregate area of the unprotected portions does not exceed
100 square feet (9.3 m2) per story.
|
3.2
|
Areas of the floor assembly covered by metal plenum, trunk lines
and steel structural beams shall be considered protected. The gypsum
wallboard membrane shall be within 2 inches of all previously listed
items.
|
4.
|
Wood floor assemblies using dimension lumber or structural composite
lumber equal to or greater than 2-inch by 10-inch (50.8 mm by 254
mm) nominal dimension, or other approved floor assemblies demonstrating
equivalent fire performance.
|
R303.1.90 Basements and cellars. The glazing area
in basements and cellars shall not be less than 1% of the floor area
served and shall be openable for natural ventilation.
|
R303.4 Mechanical ventilation. Where the air infiltration
rate of a dwelling unit is less than 5 air changes per hour where
tested with a blower door at a pressure of 0.2 inch w.c. (50 Pa) in
accordance with Section N1102.4.1.2, the dwelling unit shall be provided
with whole-house mechanical ventilation in accordance with Section
M1507.3.
|
R303.5.2 Exhaust openings. Exhaust air shall not
be directed below six feet and eight inches onto public walkways.
|
R303.8 Exterior stairway illumination. Exterior
stairways shall be provided with an artificial light source. Exterior
stairways providing access to a basement from the outdoor grade level
shall be provided with an artificial light source located at the bottom
landing of the stairway.
|
R306.90 Hose bibb. Every dwelling shall be equipped
with two remote outside frost-proof hose bibbs which shall be protected
from backflow in accordance with Section P2902.4.3 of this Code.
|
R306.91 Floor drain. All basements shall be equipped with a floor drain within 20 feet of heating/cooling system(s) and water heaters and which shall comply with Chapter 27, Section P2719 of this Code.
|
R309.5 Fire sprinklers. Private garages shall be
protected by fire sprinklers where the garage wall has been designed
based on Table R302.1(2), Footnote a, and the homeowner has opted
to purchase a fire sprinkler system for their residence in accordance
with RSMo. Section 67.281. Sprinklers in garages shall be connected
to an automatic sprinkler system that complies with Section P2904.
Garage sprinklers shall be residential sprinklers or quick-response
sprinklers, designed to provide a density of 0.05 gpm/ft2. Garage
doors shall not be considered obstructions with respect to sprinkler
placement.
|
R310.1 Emergency escape and rescue opening required. Basements, habitable attics and every sleeping room shall have not
less than one operable emergency escape and rescue opening. Where
basements contain one or more sleeping rooms, an emergency escape
and rescue opening shall be required in each sleeping room. Emergency
escape and rescue openings shall open directly into a public way,
or to a yard or court that opens to a public way.
| |
Exceptions:
| |
1.
|
Storm shelters and basements used only to house mechanical equipment
not exceeding a total floor area of 200 square feet (18.58 m2).
|
2.
|
Emergency escape and rescue openings are not required in basements
(other than sleeping rooms) provided the basement was built prior
to January 1, 2018.
|
R311.3 Floors and landings at exterior doors. There
shall be a landing or floor on each side of each exterior door. The
width of each landing shall not be less than the door served. Every
landing shall have a dimension of not less than 36 inches (914 mm)
measured in the direction of travel. The slope at exterior landings
shall not to exceed 1/4 unit vertical in 12 units horizontal (2%).
| |
Exceptions:
| |
1.
|
Exterior balconies less than 60 square feet (5.6 m2) and only
accessible from a door are permitted to have a landing less than 36
inches (914 mm) measured in the direction of travel.
|
2.
|
Doors that are not required egress doors and are served by a
stairway with no more than three risers.
|
3.
|
Doors protected by a guard in accordance with this code.
|
4.
|
Doors protected in a manner approved by the building official.
|
R311.3.2 Floor elevations for other exterior doors. Doors other than the required egress door shall be provided with
landings or floors not more than 7 3/4 inches (196 mm) below
the top of the threshold.
| |
Exception: A top landing is not required where
a stairway of not more than three risers is located on the exterior
side of the door, provided that the door does not swing over the stairway.
| |
R311.7.6 Landings for stairways. There shall be
a floor or landing at the top and bottom of each stairway. The width
perpendicular to the direction of travel shall be not less than the
width of the flight served. Landings of shapes other than square or
rectangular shall be permitted provided that the depth at the walk
line and the total area is not less than that of a quarter circle
with a radius equal to the required landing width. Where the stairway
has a straight run, the depth in the direction of travel shall be
not less than 36 inches (914 mm).
| |
Exception:
| |
1.
|
A floor or landing is not required at the top of an interior
flight of stairs, including stairs in an enclosed garage, provided
that a door does not swing over the stairs.
|
2.
|
Where not required by Section R311.3 and Section R311.3.2.
|
R313.1 Townhouse automatic fire sprinkler systems. An automatic residential fire sprinkler system shall be installed
in townhouses, in accordance with R313.90.
|
Exception:
|
An automatic residential fire sprinkler system shall not be
required where additions or alterations are made to existing townhouses
that do not have an automatic residential fire sprinkler system installed.
|
R313.2 One- and two-family dwellings automatic fire systems. An automatic residential fire sprinkler system shall be installed
in one- and two-family dwellings, in accordance with R313.90.
|
Exception:
|
An automatic residential fire sprinkler system shall not be
required for additions or alterations to existing buildings that are
not already provided with an automatic residential sprinkler system.
|
R313.90 Sprinklers in Residential Structures.
|
Notwithstanding the provisions of the Building Code and Residential
Code, as amended and adopted by Moscow Mills, Missouri, and in accordance
with RSMo. Section 67.281, a builder of one or two-family dwellings
and townhouses shall offer to any purchaser on or before the time
of entering into the purchase contract the option, at the purchaser's
cost, to install or equip fire sprinklers in the dwelling, residence,
or unit. Notwithstanding any other provision of law to the contrary,
no purchaser of such a one or two-family dwelling and townhouses shall
be denied the right to choose or decline to install a fire sprinkler
system in such dwelling or residence being purchased.
|
Section R403.1.1 Minimum size. The minimum width,
W, and thickness, T, for concrete footings shall be in accordance
with Tables R403.1(1), through R403.1(4) and Figure R403.1(1) or R403.1.3,
as applicable. The footing width shall be based on the load-bearing
value of the soil in accordance with Table R401.4.1. Footing projections,
P, shall be not less than 2 inches (51 mm) and shall not exceed the
thickness of the footing. Footing thickness and projection for fireplaces
shall be in accordance with Section R1001.2. The size of footings
supporting piers and columns shall be based on the tributary load
and allowable soil pressure in accordance with Table R401.4.1. Footings
for wood foundations shall be in accordance with the details set forth
in Section R403.2, and Figures R403.1(2) and R403.1(3).
|
Table R403.1(4)
| ||||
---|---|---|---|---|
Minimum Width of Concrete, Precast and Masonry Footings (inches).
6 Inch minimum thickness
| ||||
LOAD BEARING
|
1,500
|
2,000
|
3,000
|
>=4,000
|
VALUE OF SOIL (PSF)
| ||||
Conventional Light-frame construction
| ||||
1-story
|
17
|
16
|
16
|
16
|
2-story
|
20
|
16
|
16
|
1
|
3-story
|
23
|
17
|
16
|
16
|
Masonry veneer over light frame
| ||||
1-story
|
21
|
16
|
16
|
16
|
2-story
|
26
|
20
|
16
|
16
|
3-story
|
32
|
24
|
16
|
16
|
For SI: one inch = 25.4 mm, 1 pound per square foot =
0.0479 kPa.
| |
R403.1.4.1 Frost protection. Except where otherwise
protected from frost, foundation walls, piers and other permanent
supports of buildings and structures shall be protected from frost
by one or more of the following methods:
| |
1.
|
Extended below the frost line specified in Table R301.2.(1).
|
2.
|
Constructed in accordance with Section R403.3.
|
3.
|
Constructed in accordance with ASCE 32.
|
4.
|
Erected on solid rock.
|
Exceptions:
| |
1.
|
Protection of freestanding accessory structures with an area
of 200 square feet (18.5 m2) or less, of light-frame construction,
with an eave height of 10 feet (3,048 mm) or less shall not be required.
|
2.
|
Protection of freestanding accessory structures with an area
of 200 square feet (18.5 m2) or less, of other than light-frame construction,
with an eave height of 10 feet (3,048 mm) or less shall not be required.
|
3.
|
Decks not supported by a dwelling and not more than 4 feet (1.22
m) above the surrounding grade need not be provided with footings
that extend below the frost line.
|
R403.1.7 Footings on or adjacent to slopes. The
placement of buildings and structures on or adjacent to slopes steeper
than one-unit vertical in three units horizontal (33.3% slope) shall
conform to Sections R403.1.7.1 through R403.1.7.4 or designed and
sealed by a registered engineer licensed in the State of Missouri
with approval from the building official.
|
R404.1.3.2 Reinforcement for foundation walls. Concrete
foundation walls shall be laterally supported at the top and bottom.
Horizontal reinforcement shall be provided in accordance with Table
R404.1.2(1). Vertical reinforcement shall be provided in accordance
with Table R404.1.2(2), R404.1.2(3), R404.1.2(4), R404.1.2(5), R404.1.2(6),
R404.1.2(7) or R404.1.2(8). Vertical reinforcement for flat basement
walls retaining 4 feet (1,219 mm) or more of unbalanced backfill is
permitted to be determined in accordance with Table R404.1.2(9). For
basement walls supporting above-grade concrete walls, vertical reinforcement
shall be the greater of that required by Tables R404.1.2(2) through
R404.1.2(8) or by Section R608.6 for the above-grade wall. In buildings
assigned to Seismic Design Category D0, D1 or D2, concrete foundation
walls shall also comply with Section R404.1.4.2.
|
Exception:
|
Where unstable soil or ground water conditions do not exist,
concrete foundation walls may be constructed in accordance with Table
R404.1.2(10).
|
Table R404.1.2(10) Concrete Foundation Walls
| ||
---|---|---|
Maximum Wall Height
|
Maximum Depth of Unbalanced Backfill
|
Minimum Nominal Wall Thickness
|
8'-0"
|
7'-6" or less
|
8" (Note a)
|
9'-0"
|
8'-6" or less
|
10" (Note b)
|
10'0"
|
9'-6" or less
|
12" (Note c)
|
a.
|
Concrete foundation walls may be constructed a minimum of nominal
8 inches thick where the wall height from the top of the footing to
the top of the wall does not exceed 8 feet. A minimum of two #4 reinforcing
bars shall be placed horizontally in the top and bottom of the foundation
wall. A minimum of two #5 reinforcing bars shall be provided around
all window and door openings in concrete foundation and basement walls;
bars shall extend a minimum of 24 inches beyond the corners of the
openings.
|
b.
|
Concrete foundation walls may be constructed a minimum of nominal
10 inches thick. A minimum of two #5 reinforcing bars shall be placed
horizontally in the top, middle, and bottom of the foundation wall.
A minimum of two #5 reinforcing bars shall be provided around all
window and door openings in concrete foundation and basement walls;
bars shall extend a minimum of 24 inches beyond the corners of the
openings.
|
c.
|
Concrete foundation walls may be constructed a minimum of nominal
12 inches thick. A minimum of three #5 reinforcing bars shall be placed
horizontally in the top, middle, and bottom of the foundation wall.
A minimum of two #5 reinforcing bars shall be provided around all
window and door openings in concrete foundation and basement walls;
bars shall extend a minimum of 24 inches beyond the corners of the
openings.
|
d.
|
The concrete minimum wall thickness shall be 8 inches for foundation
walls in soil classes SC, MH, ML-CL and inorganic CL when maximum
wall height is 8 feet.
|
e.
|
The concrete minimum wall thickness shall be 10 inches for foundation
walls in soil classes SC, MH, ML-CL and inorganic CL when the maximum
wall height is 9 feet.
|
f.
|
The concrete minimum wall thickness shall be 12 inches for foundation
walls in soil classes SC, MH, ML-CL and inorganic CL when the maximum
wall height is 10 feet.
|
R405.1 Concrete or masonry foundations. Drains
shall be provided around concrete or masonry foundations that retain
earth and enclose habitable or usable spaces located below grade.
Drainage tiles, gravel or crushed stone drains, perforated pipe or
other approved systems or materials shall be installed at or below
the area to be protected and shall discharge by gravity or mechanical
means into an approved drainage system. Gravel or crushed stone drains
shall extend not less than 1 foot (305 mm) beyond the outside edge
of the footing and 6 inches (152 mm) above the top of the footing
and be covered with an approved filter membrane material. The top
of open joints of drain tiles shall be protected with strips of building
paper. Except where otherwise recommended by the drain manufacturer,
perforated drains shall be surrounded with an approved filter membrane
or the filter membrane shall cover the washed gravel or crushed rock
covering the drain. Drainage tiles or perforated pipe shall be placed
on a minimum of two inches (51 mm) of washed gravel or crushed rock
not less than one sieve size larger than the tile joint opening or
perforation and covered with not less than six inches (152 mm) of
the same material.
| |
Exception:
| |
1.
|
A drainage system is not required where the foundation is installed
on well-drained ground or sand-gravel mixture soils according to the
Unified Soil Classification System, Group I soils, as detailed in
Table R405.1.
|
2.
|
Drains provided as detailed in Section R405.1.90 are approved
as an alternative method to meet the requirements of this section.
|
R405.1.90 Soil evaluations. An evaluation of the
soil for the presence or absence of ground water is required. The
evaluation report shall be based on either a subsurface soil investigation
or satisfactory data from adjacent areas together with an inspection
of the excavation prior to pouring concrete.
| |
R405.1.90.1 Ground water present. Provide drain
tile, perforated pipe or other approved foundation drainage systems
around perimeter of the outside of the foundation and inside the foundation.
Drain discharge shall be by gravity to daylight or be connected to
a basement floor sump.
| |
R405.1.90.2 No ground water present. Provide drain
tile, perforated pipe or other approved foundation drainage systems
around perimeter of the outside of the foundation or inside the foundation.
Drain discharge shall be by gravity to daylight or be connected to
a basement floor sump.
| |
R405.1.90.3 Filter membranes. An approved filter
membrane shall be placed over the top of the joints/pipe perforations.
The tile/pipe shall be placed on 2 inches minimum gravel or crushed
stone and have 6 inch minimum cover.
| |
R405.1.90.4 Drainage system. Drainage system shall
discharge by gravity to daylight or be connected to an approved sump
(18 inches in diameter x 24 inches deep with fitted cover) with pump.
A sump pit shall be provided in each basement with pump discharge
by an approved method, exception may be granted by a code official.
|
R507.2.4 Deck lateral load connection. The lateral
load connection required by Section R507.1 shall be one of the following
methods:
| |
1.
|
In accordance with Figure R507.2.3(1) with hold-down tension
devices installed in not less than two locations per deck, within
24 inches of each end of the deck. Each device shall have an allowable
stress design capacity of not less than 1,500 pounds (6672 N).
|
2.
|
In accordance with Figure R507.2.3(2) with hold-down tension
devices installed in not less than four locations per deck, and each
device shall have an allowable stress design capacity of not less
than 750 pounds (3336 N).
|
3.
|
Using knee braces extending from the floor system to the posts.
|
4.
|
Using a diagonal brace across the floor system installed below
the floor system and attached using (2) 10d nails through the brace
into each joist, or by a metal diagonal brace "cut-in" and attached
to the top chords of the joist.
|
Table R602.7.5
| ||
---|---|---|
MINIMUM NUMBER OF FULL HEIGHT STUDS AT EACH END OF HEADERS IN
EXTERIOR WALLS (a)
| ||
ULTIMATE DESIGN WIND SPEED AND EXPOSURE CATEGORY
| ||
MAXIMUM HEADER SPAN
(feet)
|
<140 mph, Exposure B or < 130 mph, Exposure C
|
<115 mph, Exposure B(b)
|
4
|
1
|
1
|
6
|
2
|
1
|
8
|
2
|
1
|
10
|
3
|
2
|
12
|
3
|
2
|
14
|
3
|
2
|
16
|
4
|
2
|
18
|
4
|
2
|
a.
|
For header spans between those given above, use the minimum
number of full-height studs associated with the larger header span.
|
b.
|
The tabulated minimum number of full-height studs is applicable
where jack studs are provided to support the header at each end in
accordance with Table R602.7(1). Where framing anchors are used to
support the header in lieu of a jack stud in accordance with footnote
"d" of Table R602.7(1), the minimum number of full-height studs at
each end of a header shall be in accordance with requirements for
wind speed <140 mph, Exposure B. R602.10.5.90 Tall wall areas.
Provided the required number and size of brace wall panels is provided
for each story in accordance with this code, and the requirements
for walls in R602 are followed, additional engineered design for tall
wall areas such as atriums, foyers, stairs, great rooms, etc. shall
not be required.
|
R905.2.8.2 Valleys. Valley linings shall be installed
in accordance with the manufacturer's instructions before applying
shingles. Valley linings of the following types shall be permitted:
| |
1.
|
For open valleys (valley lining exposed) lined with metal, the
valley lining shall be not less than 24 inches (610 mm) wide and of
any of the corrosion resistant metals in Table R905.2.8.2.
|
2.
|
For open valleys, valley lining of two plies of mineral-surfaced
roll roofing, complying with ASTM D 3909 or ASTM D 6380 Class M, shall
be permitted. The bottom layer shall be 18 inches (457 mm) and the
top layer not less than 36 inches (914 mm) wide.
|
3.
|
For closed valleys (valley covered with shingles), valley lining
of [one ply of smooth roll roofing] two-ply of 15 pound felt [or]
complying with ASTM D 226 Type I, ASTM D 4869 Type I, or ASTM D 6757
or valley lining as described in Item 1 or 2 shall be permitted. Self-adhering
polymer modified bitumen underlayment complying with ASTM D 1970 shall
be permitted in lieu of the lining material.
|
R905.2.8.5 Drip edge. A drip edge shall be provided
at eaves and rake edges of shingle roofs. Adjacent segments of drip
edge shall be overlapped not less than 2 inches (51 mm). Drip edges
shall extend not less than 1/4 inch (6.4 mm) below the roof sheathing
and extend up back onto the roof deck not less than 2 inches (51 mm).
Drip edges shall be mechanically fastened to the roof deck at not
more than 12 inches (305 mm) o.c. with fasteners as specified in Section
R905.2.5. Underlayment shall be installed over the drip edge along
eaves and under the underlayment along rake edges.
| |
Exception: Unless drip edge specifically is required
by the Manufacturer's Installation Instructions of the roofing,
metal wrapped fascia extending 1 inch under the roof covering with
the underlayment installed over it shall be deemed to meet the requirements
of this section.
|
R1004.90 Required fire separation enclosure. All
prefabricated metal chimneys shall be enclosed in a fire-resistant
shaft with one layer of 5/8 inch type "X" gypsum board from the fireplace
connector to the underside of the roof sheathing, securely attached
with framing material. When the chimney chase is located on an exterior
wall of the structure, it need only be separated by lining the wall
between the chimney chase and the exterior wall with 5/8 type "X"
inch gypsum board. All joints are to be tight within 1/8 of an inch
or tape with joint compound. Required clearances shall be maintained
between the chimney and the gypsum board per chimney manufacturer's
specifications.
|
R1005.7 Factory-built chimney offsets. Where a
factory-built chimney assembly incorporates offsets, no part of the
chimney shall be at an angle of more than 30° (0.52 rad) from
vertical at any point in the assembly and the chimney assembly shall
not include more than four elbows.
|
Exception: When allowed by the manufacturer's
installation instructions.
|
N1101.6 (R202) Defined terms.
| |
PROJECTION FACTOR: The ratio of the horizontal
depth of an overhang, eave, or permanently attached shading device,
divided by the distance measured vertically from the bottom of the
fenestration glazing to the underside of the overhang, eave, or permanently
attached shading device.
| |
N1101.13 (R401.2) Compliance. Projects shall comply
with one of the following:
| |
1.
|
Sections N1101.14 through N1104 as amended.
|
2.
|
Section N1105 and the provisions of Sections N1101.14 through
N1104 labeled "Mandatory."
|
3.
|
An energy rating index (ERI) approach in Section N1106.
|
N1101.14 (R401.3) Certificate (Mandatory). Unless
otherwise presented to the homeowner and building official in writing,
a permanent certificate shall be completed by the builder or registered
design professional and posted on a wall in the space where the furnace
is located, a utility room or an approved location inside the building.
Where located on an electrical panel, the certificate shall not cover
or obstruct the visibility of the circuit directory label, service
disconnect label or other required labels. The certificate shall list
the predominant R-values of insulation installed in or on ceiling/roof,
walls, foundation (slab, basement wall, crawl space wall and/or floor)
and ducts outside conditioned spaces; U-factors for fenestration and
the solar heat gain coefficient (SHGC) of fenestration, and the results
from any required duct system and building envelope air leakage testing
done on the building. Where there is more than one value for each
component, the certificate shall list the value covering the largest
area. The certificate shall list the types and efficiencies of heating,
cooling and service water heating equipment. Where a gas-fired unvented
room heater, electric furnace, or baseboard electric heater is installed
in the residence, the certificate shall list "gas-fired unvented room
heater," "electric furnace" or "baseboard electric heater," as appropriate.
An efficiency shall not be listed for gas-fired unvented room heaters,
electric furnaces or electric baseboard heaters.
|
TABLE N1102.1.2 (R402.1.2)
| ||
---|---|---|
INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENT (a)
| ||
CLIMATE ZONE
|
4
| |
FENESTRATION U-FACTOR
|
0.35
| |
SKYLIGHT U-FACTOR
|
0.60
|
See Note B
|
GLAZED FENESTRATION SHGC
|
NR
| |
CEILING R-VALUE
|
38
|
38
|
WOOD FRAME WALL R-VALUE
|
13
| |
MASS WALL R-VALUE
|
8/13
|
See Note I
|
FLOOR R-VALUE
|
19
| |
BASEMENT WALL R-VALUE
|
0
|
See Note J
|
SLAB R-VALUE AND DEPTH
|
10, 2 ft
|
See Note D
|
CRAWL SPACE WALL R-VALUE
|
10/13
|
See Note C
|
a.
|
R-values are minimums. U-factors and SHGC are maximums. When
insulation is installed in a cavity which is less than the label or
design thickness of the insulation, the installed R-value of the insulation
shall not be less than the R-value specified in the table.
|
b.
|
The fenestration U-factor column excludes skylights. The SHGC
column applies to all glazed fenestration.
|
c.
|
"15/19" means R-15 continuous insulation on the interior or
exterior of the home or R-19 cavity insulation at the interior of
the basement wall. "15/19" shall be permitted to be met with R- 13
cavity insulation on the interior of the basement wall plus R-5 continuous
insulation on the interior or exterior of the home. "10/13" means
R-10 continuous insulation on the interior or exterior of the home
or R-13 cavity insulation at the interior of the basement wall.
|
d.
|
R-5 shall be added to the required slab edge R-values for heated
slabs. Insulation depth shall be the depth of the footing or 2 feet,
whichever is less in Zones 1 through 3 for heated slabs.
|
e.
|
—
|
f.
|
—
|
g.
|
—
|
h.
|
—
|
i.
|
The second R-value applies when more than half the insulation
is on the interior of the mass wall.
|
j.
|
Band boards and cripple walls shall be insulated to R-13.
|
Section N1102.1.5 (R402.1.5) Total UA alternative. If the total building thermal envelope UA (sum of U-factor times
assembly area) is less than or equal to the total UA resulting from
using the U-factors in Table N1102.1.4 (multiplied by the same assembly
area as in the proposed building), the building shall be considered
in compliance with Table N1102.1.2. The UA calculation shall be done
using a method consistent with the ASHRAE Handbook of Fundamentals
and shall include the thermal bridging effects of framing materials.
The SHGC requirements shall be met in addition to UA compliance.
|
Exception: In Climate Zone 4, permanently shaded
vertical fenestration shall be permitted to satisfy SHGC requirements.
The projection factor of an overhang, eave, or permanently attached
shading device shall be greater than or equal to the value listed
in Table N1102.2.2.1 for the appropriate orientation. The minimum
projection shall extend beyond each side of the glazing a minimum
of 12 inches. Each orientation shall be rounded to the nearest cardinalorientation
(+/- 45° or 0.79 rad) for purposes of calculations and demonstrating
compliance.
|
Table N1102.1.5
| |
---|---|
Minimum Projection Factor Required by Orientation for SHGC
| |
Orientation
|
Projection Factor
|
North
|
>0.40 (a)
|
South
|
>0.20
|
East
|
>0.50
|
West
|
>0.50
|
a.
|
For the north orientation, a vertical projection located on
the west-edge of the fenestration with the equivalent of PF>0.15 shall
also satisfy the minimum projection factor requirements.
|
Table N1102.4.1.1.1 (402.4.1.1)
| ||
---|---|---|
Air Barrier and Insulation Installation
| ||
Component
|
Air Barrier Criteria
|
Insulation Installation Criteria
|
General requirements
|
A continuous air barrier shall be installed in the building
envelope. The exterior thermal envelope contains a continuous air
barrier. Breaks or joints in the air barrier shall be sealed.
|
Air-permeable insulation shall not be used as a sealing material.
|
Ceiling/attic
|
The air barrier in any dropped ceiling/soffit shall be aligned
with the insulation and any gaps in the air barrier sealed. Access
openings, drop down stairs or knee wall doors to unconditioned attic
spaces shall be sealed.
|
The insulation in any dropped ceiling/soffit shall be aligned
with the air barrier
|
Walls
|
The junction of the foundation and sill plate shall be sealed.
The junction of the top plate and the top of exterior walls shall
be sealed. Knee walls shall be sealed.
|
Cavities within comers and headers of frame walls shall be insulated
by completely filling the cavity with a material having a thermal
resistance of R-3 per inch minimum Exterior thermal envelope insulation
for framed walls shall be installed in substantial contact and continuous
alignment with the air barrier
|
Windows, skylights and doors
|
The space between window/door jambs and framing, and skylights
and framing shall be sealed
| |
Rim joists
|
Rim joists shall include the air barrier.
|
Rim joists shall be insulated.
|
Floors (including above garage and cantilevered floors)
|
The air barrier shall be installed at any exposed edge of insulation.
|
Floor framing cavity insulation shall be installed to maintain
permanent contact with the underside of subfloor decking, or floor
framing cavity insulation shall be permitted to be in contact with
the top side of sheathing, or continuous insulation installed on the
underside of floor framing; and extends from the bottom to the top
of all perimeter floor framing members
|
Crawl space walls
|
Exposed earth in unvented crawl spaces shall be covered with
a Class I vapor retarder with overlapping joints taped
|
Where provided instead of floor insulation, insulation shall
be permanently attached to the crawl-space walls
|
Shafts, penetrations
|
Duct shafts, utility penetrations, and flue shafts opening to
exterior or unconditioned space shall be sealed.
| |
Narrow cavities
|
Batts in narrow cavities shall be cut to fit, or narrow cavities
shall be filled by insulation that on installation readily conforms
to the available cavity space.
| |
Garage separation
|
Air sealing shall be provided between the garage and conditioned
spaces.
| |
Recessed lighting
|
Recessed light fixtures installed in the building thermal envelope
shall be sealed to the drywall
|
Recessed light fixtures installed in the building thermal envelope
shall be sealed to the drywall by means such as, but not limited to,
a gasketed fixture
|
Plumbing and wiring
|
Batt insulation shall be cut neatly to fit around wiring and
plumbing in exterior walls, or insulation that on installation readily
conforms to available space shall extend behind piping and wiring.
| |
Shower/tub on exterior wall
|
The air barrier installed at exterior walls adjacent to showers
and tubs shall separate them from the showers and tubs
|
Exterior walls adjacent to showers and tubs shall be insulated.
|
Electrical/phone box on exterior walls
|
The air barrier shall be installed behind electrical or communication
boxes or air-sealed boxes shall be installed.
| |
HVAC register boots
|
HVAC register boots that penetrate building thermal envelope
shall be sealed to the subfloor or drywall.
| |
Concealed sprinklers
|
When required to be sealed, concealed fire sprinklers shall
only be sealed in a manner that is recommended by the manufacturer.
Caulking or other adhesive sealants shall not be used to fill voids
between fire sprinkler cover plates and walls or ceilings
|
N1102.4.1.2 (R402.4.1.2) Testing Option. If testing
is elected, the building or dwelling unit shall be tested and verified
as having an air leakage rate of less than five air changes per hour.
Testing shall be conducted in accordance with ASTM E 779 or ASTM E
1827 and reported at a pressure of 0.2 inches w.g. (50 pascals).
| |
Where required by the building official, testing shall be conducted
by an approved third party. A written report of the results of the
test shall be signed by the party conducting the test and provided
to the code official. Testing shall be performed at any time after
creation of all penetrations of the building thermal envelope.
| |
During testing:
| |
1.
|
Exterior windows and doors, fireplace and stove doors shall
be closed, but not sealed, beyond the intended weather stripping or
other infiltration control measures.
|
2.
|
Dampers including exhaust, intake, makeup air, backdraft and
flue dampers shall be closed, but not sealed beyond intended infiltration
control measures.
|
3.
|
Interior doors, if installed at the time of the test, shall
be open.
|
4.
|
Exterior doors for continuous ventilation systems and heat recovery
ventilators shall be closed and sealed.
|
5.
|
Heating and cooling systems, if installed at the time of the
test, shall be turned off.
|
6.
|
Supply and return registers, if installed at the time of the
test, shall be fully open.
|
N1102.4.1.90 Inspection option. The items listed
in Table N1102.4.1.1 (402.4.1.1), applicable to the method of construction,
may be field verified.
| |
N1102.4.4 (R402.4.4) Rooms containing fuel-burning appliances. In Climate Zones 3 through 8, where open combustion air ducts provide
combustion air to open combustion fuel-burning appliances, the appliances
and combustion air opening shall be located outside the building thermal
envelope or enclosed in a room, isolated from inside the thermal envelope.
Such rooms shall be sealed and insulated in accordance with the envelope
requirements of Table N1102.1.2, where the walls, floors and ceilings
shall meet a minimum of the basement wall R-value requirement. The
door into the room shall be fully gasketed and any water lines and
ducts in the room insulated in accordance with Section N1103. The
combustion air duct shall be insulated where it passes through conditioned
space to a minimum of R-8.
| |
Exceptions:
| |
1.
|
Direct vent appliances with both intake and exhaust pipes installed
continuous to the outside.
|
2.
|
Fireplaces and stoves complying with Sections N1102.4.2 and
R1006.
|
3.
|
Mechanical equipment in an unfinished space.
|
N1103.1.1 (R403.1.1) Programmable thermostat. Delete
in its entirety.
| |
N1103.3.2 (R403.3.2) Sealing (Mandatory). Ducts,
air handlers and filter boxes shall be sealed. Joints and seams shall
comply with either the International Mechanical Code or Section M1601.4.1
of this code, as applicable.
| |
Exceptions:
| |
1.
|
Air-impermeable spray foam products shall be permitted to be
applied without additional joint seals.
|
2.
|
For ducts having a static pressure classification of less than
two inches of water column (500 Pa), additional closure systems shall
not be required for continuously welded joints and seams, and locking-type
joints and seams of other than the snap-lock and button- lock types.
|
3.
|
Sealing Duct sealing and tightness test is not required where
the air handler and ducts are located within conditioned space as
determined by the building official.
|
N1103.3.3 (R403.3.3) Duct testing (Optional). Ducts
may be pressure tested to determine air leakage by one of the following
methods: N1103.3.5 (R403.3.5)
| |
Building cavities (Mandatory). Delete in its entirety.
| |
N1103.4.1 (R403.4.1) Protection of piping insulation. Piping insulation exposed to weather shall be protected from damage,
including that caused by sunlight, moisture, equipment maintenance
and wind, and shall provide shielding from solar radiation that can
cause degradation of the material. Adhesive tape shall not be permitted.
| |
Exception: Line sets between the structure and
the condensing unit.
| |
N1103.5.3 (R403.5.3) Hot water pipe insulation (Prescriptive). Insulation for hot water pipe with a minimum thermal resistance
(R-value) of R-3 shall be applied to the following:
| |
1.
|
Piping larger than 3/4 inch (19 mm) in nominal diameter.
|
2.
|
Piping serving more than one dwelling unit.
|
3.
|
Piping located outside the conditioned space.
|
4.
|
Piping from the water heater to a distribution manifold.
|
5.
|
Piping located under a floor slab.
|
6.
|
Buried in piping.
|
7.
|
Supply and return piping in recirculation systems other than
demand recirculation systems.
|
N1103.6 (R403.6) Mechanical ventilation. Mandatory
where required by N1102.4.1.2. If, in accordance with N1102.4.1.2,
the resulting air changes per hour (ACH) at 50 Pascals is less than
five air changes per hour, the building shall be provided with ventilation
that meets the requirements of Section M1507 of this code or the International
Mechanical Code, as applicable, or with other approved means of ventilation.
Outdoor air intakes and exhausts shall have automatic or gravity dampers
that close when the ventilation system is not operating.
|
N1104.1 (R404.1) Lighting equipment (Optional). Not less than 75% of the lamps in permanently installed lighting
fixtures shall be high efficacy lamps or not less than 75% of the
permanently installed lighting fixtures shall contain only high-efficacy
lamps.
|
Exception: Low-voltage lighting.
|
Table N1105.5.2(1)
| ||
---|---|---|
Specifications for the Standard Reference and Proposed Designs
| ||
BUILDING COMPONENT
|
STANDARD REFERENCED DESIGN
|
PROPOSED DESIGN
|
Above-grade Walls
|
Type: mass wall if proposed wall is mass; otherwise wood frame
|
As proposed
|
Gross area: same as proposed
|
As proposed
| |
U-factor: as specified in Table N1102.1.4
|
As proposed
| |
Solar absorptance = 0.75
|
As proposed
| |
Remittance = 0.90
|
As proposed
| |
Basement and crawl space walls
|
Type: same as proposed
|
As proposed
|
Gross area: same as proposed
|
As proposed
| |
U-factor: from Table N1102.1.4, with insulation layer on interior
side of walls
|
As proposed
| |
Above-grade floors
|
Type: wood frame
|
As proposed
|
Gross area: same as proposed
|
As proposed
| |
U-factor: as specified in Table N1102.1.4
|
As proposed
| |
Ceilings
|
Type: wood frame
|
As proposed
|
Gross area: same as proposed
|
As proposed
| |
U-factor: as specified in Table N1102.1.4
|
As proposed
| |
Roofs
|
Type: composition shingle on wood sheathing
|
As proposed
|
Gross area: same as proposed
|
As proposed
| |
Solar absorptance= 0.75 As proposed Emittance = 0.90
|
As proposed
| |
Attics
|
Type: vented with aperture = 1 ft2 per 300 ft2 ceiling area
|
As proposed
|
Foundations
|
Type: same as proposed
|
As proposed
|
Foundation wall area above and below grade and soil characteristics:
same as proposed
|
As proposed
| |
Opaque doors
|
Area: 40 ft2
|
As proposed
|
Orientation: North
|
As proposed
| |
U-factor: same as fenestration from Table N1102.1.4
|
As proposed
| |
Vertical fenestration other than opaque doors
|
Total area b = 15% of the conditioned floor area
|
As proposed
|
Orientation: equally distributed to 4 cardinal compass orientations
(N, E, S and W)
|
As proposed
| |
U-factor: as specified in Table N1102.1.4 SHGC: as specified
in Table N1102.1.2, except that for climates with no requirement
|
As proposed
| |
(NR) SHGC = 0.40 shall be used
| ||
Interior shade fraction: 0.92 - (0.21 x SHGC for the standard
reference design)
|
0.92 - (0.21 x SHGC as proposed)
| |
External shading: none
|
As proposed
| |
Skylights
|
None
|
As proposed
|
Thermally isolated sunrooms
|
None
|
As proposed
|
Air exchange rate
|
Air leakage rate of five air changes per hour at a pressure
of 0.2 inches w.g. (50 Pa). The mechanical ventilation rate shall
be in addition to the air leakage rate and the same as in the proposed
design, but no greater than 0.01 x CFA + 7.5 x (Nbr + 1)
where:
CFA = conditioned floor area
Nbr = number of bedrooms
Energy recovery shall not be assumed for the mechanical
|
For residences that are not tested, the same air leakage rate
as the standard reference design. For tested residences, the measured
air exchange rate mechanical ventilation rate b shall be in addition
to the air leakage rate and shall be proposed
|
Mechanical ventilation
|
None, except where mechanical ventilation is specified by the
proposed design, in which case: Annual vent fan energy use: kWh/yr
=0.03942 x CFA + 29.565 x (Nbr + 1) Where: CFA = conditioned floor
area Nbr = number of bedrooms
|
As proposed
|
Internal gains
|
I Gain = 17,900 + 23.8 x CFA + 4104 x Nbr (Btu/day per dwelling
unit)
|
Same as standard reference design
|
Internal mass
|
An internal mass for furniture and contents of eight pounds
per square foot of floor area
|
Same as standard reference design, plus any additional mass
specifically designed as a thermal storage element but not integral
to the building envelope or structure.
|
Structural mass
|
For masonry floor slabs, 80% of floor area covered by R-2 carpet
and pad, and 20% of floor directly exposed to room air
|
As proposed
|
For masonry basement walls, as proposed, but with insulation
required by Table R402.1.4 located on the interior side of the walls
|
As proposed
| |
For other walls, for ceilings, floors, and interior walls, wood
frame construction
|
As proposed
| |
Heating systems d, e
|
Fuel type: same as the proposed design
Efficiencies: Electric: air-source heat pump with prevailing
federal minimum standards. Non-electric furnaces: natural gas furnace
with prevailing federal minimum standards. Non-electric boilers: natural
gas boiler with prevailing federal minimum standards.
|
As proposed
|
Capacity: sized in accordance with Section N1103.7
| ||
Cooling systems d, f
|
Fuel type: electric Efficiency: in accordance with prevailing
federal minimum standards Capacity: sized in accordance with Section
N1103.7
|
As proposed
|
Service water heating d, e, f
|
Fuel type: same as proposed design Efficiency: in accordance
with prevailing federal minimum standards Use: gal/day = 30 + 10 x
Nbr Tank temperature: 120° F. Where: Nbr = number of bedrooms
|
As proposed Same as standard reference
|
Thermal distribution systems
|
Duct insulation: from Section N1103.2.1
A thermal distribution system efficiency (DSE) of 0.88 shall
be applied to both the heating and cooling system efficiencies for
all systems other than tested duct systems. For tested duct systems,
the leakage rate shall be 4 cfm (113.3 L/min) per 100 ft2 (9.29 m2)
of conditioned floor area at a pressure of differential of 0.1 inches
w.g. (25 Pa.)
|
As tested or specified in Table R405.5.2(2) if not tested
Duct insulation shall be as proposed
|
Thermostat
|
Type: Manual, cooling temperature setpoint = 75° F.
Heating temperature setpoint = 72° F.
|
Same as standard reference
|
For SI: 1 square foot = 0.93 m2; 1 British thermal unit = 1055J;
1 pound per square foot = 4.88 kg/m2; 1 gallon (US) = 3.785 L; °C
= (°F-32)/1.8; 1° = 0.79 rad
|
a.
|
Where required by the code official, testing shall be conducted
by an approved party. Hourly calculations as specified in the ASHRAE
Handbook of Fundamentals, or the equivalent, shall be used to determine
the energy loads resulting from infiltration.
|
b.
|
The combined air exchange rate for infiltration and mechanical
ventilation shall be determined in accordance with Equation 43 of
2001 ASHRAE and book of Fundamentals, page 26.24, and the "Whole-house
Ventilation" provisions of 2001 ASHRAE Handbook of Fundamentals, page
26.19, for intermittent mechanical ventilation.
|
c.
|
Thermal storage element shall mean a component not part of the
floors, walls or ceilings that is part of a passive solar system,
and that provides thermal storage such as enclosed water columns,
rock beds, or phase change containers. A thermal storage element must
be in the same room as fenestration that faces within 15° (0.26
rad) of true south, or must be connected to such a room with pipes
or ducts that allow the element to be actively charged.
|
d.
|
For a proposed design with multiple heating, cooling or water
heating systems using different fuel types, the applicable standard
reference design system capacities and fuel types shall be weighted
in accordance with their respective loads as calculated by accepted
engineering practice for each equipment and fuel type present.
|
e.
|
For a proposed design without a proposed heating system, a heating
system with the prevailing federal minimum efficiency shall be assumed
for both the standard reference design and proposed design.
|
f.
|
For a proposed design home without a proposed cooling system,
an electric air conditioner with the prevailing federal minimum efficiency
shall be assumed for both the standard reference design and the proposed
design.
|
g.
|
For a proposed design with a non-storage-type water heater,
a forty-gallon storage- type water heater with the prevailing federal
minimum energy factor for the same fuel as the predominant heating
fuel type shall be assumed. For the case of a proposed design without
a proposed water heater, a forty-gallon storage-type water heater
with the prevailing federal minimum efficiency for the same fuel as
the predominant heating fuel type shall be assumed for both the proposed
design and standard reference design.
|
M1301.2 Identification. Each length of pipe and
tubing as produced by the manufacturer and prior to use in the field,
and each pipe fitting utilized in a mechanical system shall bear the
identification of the manufacturer.
|
Exception: Line sets and similar materials, provided
the installer can provide documentation related to the material used
such as, but not limited to, a receipt, invoice, or container.
|
M1305.1.4.1 Ground clearance. Equipment and appliances
supported from the ground shall be level and firmly supported on a
concrete slab or other approved material extending not less than two
inches (50.8 mm) above the adjoining ground. Such support shall be
in accordance with the manufacturer's installation instructions.
Appliances suspended from the floor shall have a clearance of not
less than six inches (152 mm) from the ground.
|
M1305.1.4.3 Electrical requirements. A luminaire controlled by a switch located at the required passageway opening and a receptacle outlet shall be installed at or near the appliance location in accordance with Chapter 39. Exposed lamps shall be protected from damage by location or lamp guards.
|
Exception: Basements
|
M1307.2 Anchorage of appliances. Appliances designed
to be fixed in position shall be fastened or anchored in an approved
manner. In Seismic Design Categories D0, D1 and D2, water heaters
and thermal storage units shall be anchored or strapped to resist
horizontal displacement caused by earthquake motion in accordance
with one of the following:
| |
1.
|
Anchorage and strapping shall be designed to resist a horizontal
force equal to one-third of the operating weight of the water heater
storage tank, acting in any horizontal direction. Strapping shall
be at points within the upper one-third and lover one-third of the
appliance's vertical dimensions. At the lower point, the strapping
shall maintain a minimum distance of four inches (102 mm) above the
controls.
|
2.
|
The anchorage strapping shall be in accordance with the appliance
manufacturer's recommendations.
|
M1411.3.1 Auxiliary and secondary drain systems. In addition to the requirements of Section M1411.3, a secondary
drain or auxiliary drain pan shall be required for each cooling or
evaporator coil where damage to any building components will occur
as a result of overflow from the equipment drain pan or stoppage in
the condensate drain piping. Such piping shall maintain a minimum
horizontal slope in the direction of discharge of not less than 1/8
unit vertical in 12 units horizontal (1% slope). Drain piping shall
be not less than 3/4-inch (19 mm) nominal pipe size. One of the following
methods shall be used:
| |
1.
|
An auxiliary drain pan with a separate drain shall be installed
under the coils on which condensation will occur. The auxiliary pan
drain shall discharge to a conspicuous point of disposal to alert
occupants in the event of a stoppage of the primary drain. The pan
shall have a minimum depth of 1.5 inches (38 mm), shall be not less
than three inches (76 mm) larger than the unit or the coil dimensions
in width and length and shall be constructed of corrosion-resistant
material. Galvanized sheet steel pans shall have a minimum thickness
of not less than No. 26 Gage. Nonmetallic pans shall have a minimum
thickness of not less than 0.0625 inch (1.6 mm).
|
2.
|
A separate overflow drain line shall be connected to the drain
pan installed with the equipment. This overflow drain shall discharge
to a conspicuous point of disposal to alert occupants in the event
of a stoppage of the primary drain. The overflow drain line shall
connect to the drain pan at a higher level than the primary drain
connection.
|
3.
|
An auxiliary drain pan without a separate drain line shall be
installed under the coils on which condensation will occur. This pan
shall be equipped with a water level detection device conforming to
UL 508 that will shut off the equipment served prior to overflow of
the pan. The pan shall be equipped with a fitting to allow for drainage.
The auxiliary drain pan shall be constructed in accordance with Item
one of this section.
|
4.
|
A water level detection device conforming to UL 508 shall be
installed that will shut off the equipment served in the event that
the primary drain is blocked. The device shall be installed in the
primary drain line, the overflow drain line or the equipment supplied
drain pan, located at a point higher than the primary drain line connection
and below the overflow rim of such pan.
|
M1411.8 Locking access port caps. Delete in its
entirety.
|
M1502.4.1 Material and size. Exhaust ducts shall
have a smooth interior finish and be constructed of metal having a
minimum thickness of 0.0157 inches (0.3950 mm). The duct shall be
four inches (102 mm) nominal in diameter.
|
M1502.4.2 Duct installation. Exhaust ducts shall
be supported at intervals not to exceed 12 feet (3,658 mm) and shall
be secured in place. The insert end of the duct shall extend into
the adjoining duct or fitting in the direction of airflow. Exhaust
duct joints shall be sealed in accordance with Section M1601.4.1 and
shall be mechanically fastened. Ducts shall not be joined with fasteners
that protrude more than 1/8 inch (3.2 mm) into the inside of the duct.
|
M1503.4 Makeup air required. Exhaust hood systems
capable of exhausting in excess of 600 cubic feet per minute (0.285m3/s)
shall be mechanically or naturally provided with makeup air at a rate
approximately equal to the exhaust air rate. Such makeup air systems
shall be equipped with not less than one damper. Each damper shall
be a gravity damper or an electrically operated damper that automatically
opens when the exhaust system operates. Dampers shall be accessible
for inspection, service, repair and replacement without removing permanent
construction or any other ducts not connected to the damper being
inspected, serviced, repaired or replaced.
|
M1601.1.1 Above-ground duct systems. Above-ground
duct systems shall conform to the following:
| |
1.
|
Equipment connected to duct systems shall be designed to limit
discharge air temperature to not greater than 250° F. (121°
C.).
|
2.
|
Factory-made ducts shall be listed and labeled, as produced
by the manufacturer and prior to use in the field, in accordance with
UL 181 and installed in accordance with the manufacturer's instructions.
|
3.
|
Fibrous glass duct construction shall conform to the SMACNA
Fibrous Glass Duct Construction Standards or NAIMA Fibrous Glass Duct
Construction Standards.
|
4.
|
Field-fabricated and shop-fabricated metal and flexible duct
constructions shall conform to the SMACNA HVAC Duct Construction Standards
— Metal and Flexible or by Table M1601.1.1. Galvanized steel
shall conform to ASTM A 653.
|
5.
|
The use of gypsum products to construct return air ducts or
plenums is permitted, provided that the air temperature does not exceed
125° F. (52° C.) and exposed surfaces are not subject to condensation.
|
6.
|
Duct systems shall be constructed of materials having a flame
spread index of not greater than 200.
|
7.
|
Stud wall cavities and the spaces between solid floor joists
to be used as air plenums shall comply with the following conditions:
|
7.1.
|
These cavities or spaces shall not be used as a plenum for supply
air.
|
7.2.
|
These cavities or spaces shall not be part of a required fire-resistance-rated
assembly.
|
7.3.
|
Stud wall cavities shall not convey air from more than one floor
level. Stud wall cavities shall be sealed at the floor to not draft
air from the living space between the flooring and drywall.
|
7.4.
|
Stud wall cavities and joist-space plenums shall be isolated
from adjacent concealed spaces by tight-fitting fireblocking in accordance
with Section R602.8.
|
7.5.
|
Stud wall cavities in the outside walls of building envelope
assemblies shall not be utilized as air plenums.
|
M1601.4.1 Joints, seams and connections.
| |
Longitudinal and transverse joints, seams and connections in
metallic and nonmetallic ducts shall be constructed as specified in
SMACNA HVAC Duct Construction Standards - Metal and Flexible and NAIMA
Fibrous Glass Duct Construction Standards.
| |
Joints of duct systems shall be made substantially airtight
in an unconditioned area by means of tapes, mastics, liquid sealants,
gasketing or other approved closure systems. Closure systems used
with rigid fibrous glass ducts shall comply with UL 181A and shall
be marked 181A-P for pressure-sensitive tape, 181A-M for mastic or
181A-H for heat-sensitive tape. Closure systems used with flexible
air ducts and flexible air connectors shall comply with UL 181B and
shall be marked 181B-FX for pressure sensitive tape or 181B-M for
mastic. Duct connections to flanges of air distribution system equipment
or sheet metal fittings shall be mechanically fastened. Mechanical
fasteners for use with flexible nonmetallic air ducts shall comply
with UL 181B and shall be marked 181B-C. Crimp joints for round metal
ducts shall have a contact lap of at least one inch and shall be mechanically
fastened with at least three sheet metal screws or rivets equally
spaced around the joint. Closure systems used to seal metal ductwork
shall be installed in accordance with the manufacturer's installation
instructions.
| |
Exceptions:
| |
1.
|
Spray polyurethane foam shall be permitted to be applied without
additional joint seals.
|
2.
|
Where a duct connection is made that is partially inaccessible,
three screws or rivets shall be equally spaced on the exposed portion
of the joint so as to prevent a hinge effect.
|
3.
|
Continuously welded and locking-type longitudinal joints and
seams in ducts operating at static pressure less than two inches of
water column (500 Pa) pressure classification shall not require additional
closure systems.
|
M1602.2 Return air openings. Return air openings
for heating, ventilation and air conditioning systems shall comply
with all of the following:
| |
1.
|
Openings shall not be located less than 10 feet (3048 mm) measured
in any direction from an open combustion chamber or draft hood of
another appliance located in the same room or space.
|
2.
|
The amount of return air taken from any room or space shall
be not greater than the flow rate of supply air delivered to such
room or space.
|
3.
|
Return and transfer openings shall be sized in accordance with
the appliance or equipment manufacturers' installation instructions,
Manual D or the design of the registered design professional.
|
4.
|
Return air shall not be taken from a closet, bathroom, toilet
room, kitchen, garage, mechanical room, boiler room, furnace room
or unconditioned attic.
|
Exceptions:
| |
1.
|
Taking return air from a kitchen is not prohibited where such
return air openings serve the kitchen only, and are located not less
than 10 feet (3,048 mm) from the cooking appliances. Dedicated forced-air
systems serving only the garage shall not be prohibited from obtaining
return air from the garage.
|
2.
|
Taking return air from an unconditioned crawl space shall not
be accomplished through a direct connection to the return side of
a forced-air furnace. Transfer openings in the crawl space enclosure
shall not be prohibited.
|
3.
|
Return air from one dwelling unit shall not be discharged into
another dwelling unit.
|
4.
|
Return air may be taken from a bedroom closet over 64 square
feet in area.
|
M2105.19 Pipe penetrations. Openings for pipe penetrations
in walls, floors and ceilings shall be larger than the penetrating
pipe. Openings through concrete or masonry building elements shall
be sleeved, except where a drilled hole provides a natural and sufficient
relieving arch as determined by the building official. The annular
space surrounding pipe penetrations shall be protected in accordance
with Section VP2606.1.
|
G2408.4 (305.7) Clearances from grade. Equipment
and appliances installed at grade level shall be supported on a level
concrete slab or other approved material extending not less than two
inches (50.8 mm) above adjoining grade or shall be suspended not less
than six inches (152 mm) above adjoining grade. Such supports shall
be installed in accordance with the manufacturer's instructions.
|
G2409.1 (308.1) Scope. This section shall govern
the reduction in required clearances to combustible materials, including
gypsum board, and combustible assemblies for chimneys, vents, appliances,
devices and equipment. Clearance requirements for air-conditioning
equipment and central heating boilers and furnaces shall comply with
Sections G2409.3 and G2409.4.
|
Exception:
|
Where allowed by the Manufacturer's Installation Instructions
and approved by the building official.
|
G2412.9 (401.9) Identification. Each length of
pipe and tubing, as produced by the manufacturer and prior to use
in the field, and each pipe fitting, utilized in a fuel gas system,
shall bear the identification of the manufacturer.
|
G2439.7.4.1 (614.8.4.1) Specified length. The maximum
length of the exhaust duct shall be 35 feet (10,668 mm) from the connection
to the transition duct from the dryer to the outlet terminal. Where
fittings are used, the maximum length of the exhaust duct shall be
reduced in accordance with Table M1502.4.5.1.
|
G2439.7.4.1. The maximum length of the exhaust duct does not
include the transition duct.
|
G2442.4 (618.4) Prohibited sources. Outdoor or
return air for forced-air heating and cooling systems shall not be
taken from the following locations:
| ||
1.
|
Closer than 10 feet (3,048 mm) from an appliance vent outlet,
a vent opening from a plumbing drainage system or the discharge outlet
of an exhaust fan, unless the outlet is three feet (914 mm) above
the outside air inlet.
| |
2.
|
Where there is the presence of objectionable odors, fumes or
flammable vapors; or where located less than 10 feet (3,048 mm) above
the surface of any abutting public way or driveway; or where located
at grade level by a sidewalk, street, alley or driveway.
| |
3.
|
A hazardous or insanitary location or a refrigeration machinery
room as defined in the International Mechanical Code.
| |
4.
|
A room or space, the volume of which is less than 25% of the
entire volume served by such system. Where connected by a permanent
opening having an area sized in accordance with Section 2442.2, adjoining
rooms or spaces shall be considered as a single room or space for
the purpose of determining the volume of such rooms or spaces.
| |
Exception: The minimum volume requirement shall
not apply where the amount of return air taken from a room or space
is less than or equal to the amount of supply air delivered to such
room or space.
| ||
5.
|
A room or space containing an appliance where such a room or
space serves as the sole source of return air.
| |
Exception: This shall not apply where:
| ||
1.
|
The appliance is a direct-vent appliance or an appliance not
requiring a vent in accordance with Section G2425.8.
| |
2.
|
The room or space complies with the following requirements:
| |
a.
|
The return air shall be taken from a room or space having a
volume exceeding one cubic foot for each 10 Btu/h (9.6L/W) of combined
input rating of all fuel burning appliances therein.
| |
b.
|
The volume of supply air discharged back into the same space
shall be approximately equal to the volume of return air taken from
the space.
| |
c.
|
Return-air inlets shall not be located within 10 feet (3,048
mm) of a draft hood in the same room or space or the combustion chamber
of any atmospheric burner appliance in the same room or space.
| |
3.
|
Rooms or spaces containing solid fuel-burning appliances, provided
that return-air inlets are located not less than 10 feet (3,048 mm)
from the firebox of such appliances.
| |
6.
|
A closet, bathroom, toilet room, kitchen, garage, boiler room,
furnace room or unconditioned attic.
| |
Exceptions:
| ||
1.
|
Where return air intakes are located not less than 10 feet (3,048
mm) from cooking appliances and serve only the kitchen area, taking
return air from a kitchen area shall not be prohibited.
| |
2.
|
Dedicated forced air systems serving only a garage shall not
be prohibited from obtaining return air from the garage.
| |
3.
|
Return air may be taken from a bedroom closet over 64 square
feet in area.
| |
4.
|
A crawl space by means of direct connection to the return side
of a forced-air system. Transfer openings in the crawl space enclosure
shall not be prohibited.
|
P2503.5.1 Rough plumbing. DWV systems shall be
tested on completion of the rough piping installation by water or
by air, without evidence of leakage. Either test shall be applied
to the drainage system in its entirety or in sections after rough-in
piping has been installed, as follows:
| |
1.
|
Water test. Each section shall be filled with water to a point
not less than five feet (1524 mm) above the highest fitting connection
in that section, or to the highest point in the completed system.
Water shall be held in the section under test for a period of 15 minutes.
The system shall prove leak free by visual inspection.
|
2.
|
Air test. The portion under test shall be maintained at a gauge
pressure of five pounds per square inch (psi) (34 kPa) or 10 inches
of mercury column (34 kPa). This pressure shall be held without introduction
of additional air for a period of 15 minutes.
|
P2503.6 Shower liner test. Delete in its entirety.
|
P2602.1 General. The water-distribution and drainage
system of any building or premises where plumbing fixtures are installed
shall be connected to a public water supply or sewer system, respectively,
when these public utilities are within 200 feet of the nearest property
line. Where either a public water-supply or sewer system, or both,
are not available within 200 feet, or connection to them is not feasible
as determined by the building official, an individual water supply
or individual (private) sewage-disposal system, or both, shall be
provided.
|
P2603.5 Freezing. Water, soil and waste pipes shall
not be installed in exterior walls, crawl spaces or attics, unless
approved by the building official upon a showing that such pipes installed
in such locations are not at risk of freezing. Water service pipes
shall be installed not less than 36 inches (915 mm) below grade.
|
P2603.5.1 Sewer depth. Building sewers that connect
to private sewage disposal systems shall be a not less than 18 inches
(453 mm) below finished grade at the point of septic tank connection.
Building sewers shall be not less than 30 inches (762 mm) below grade.
|
P2609.1 Identification. Each length of pipe and
tubing, as produced by the manufacturer and prior to use in the field,
and each pipe fitting, trap, fixture, material and device utilized
in a plumbing system shall bear the identification of the manufacturer
and any markings required by the applicable referenced standards.
Nipples created from the cutting and threading of approved pipe shall
not be required to be identified.
|
Exception: Where the manufacturer identification
cannot be marked on pipe fittings and pipe nipples because of the
small size of such fittings, the identification shall be printed on
the item packaging or on documentation provided with the item.
|
P2801.8 Water heater seismic bracing. In Seismic
Design Categories D0, D1 and D2, water heaters shall be anchored or
strapped in the upper one-third and in the lower one-third of the
appliance to resist a horizontal force equal to one-third of the operating
weight of the water heater, acting in any horizontal direction, or
in accordance with the appliance manufacturer's recommendations.
|
P2903.5 Water hammer. The flow velocity of the
water distribution system shall be controlled to reduce the possibility
of water hammer. Water-hammer arrestors shall be installed in accordance
with the manufacturer's instructions. Water-hammer arrestors
shall conform to ASSE 1010. A water-hammer arrestor shall be installed
where quick-closing valves are utilized.
|
P2904.1 General. These regulations are subject
to Section R313 of this Code as amended by Moscow Mills. The design
and installation of residential fire sprinkler systems shall be in
accordance with NFPA 13D or Section P2904, which shall be considered
equivalent to NFPA 13D. Partial residential sprinkler systems shall
be permitted to be installed only in buildings not required to be
equipped with a residential sprinkler system. Section P2904 shall
apply to stand-alone and multipurpose wet-pipe sprinkler systems that
do not include the use of antifreeze. A multipurpose fire sprinkler
system shall provide domestic water to both fire sprinklers and plumbing
fixtures. A stand-alone sprinkler system shall be separate and independent
from the water distribution system. A backflow preventer shall not
be required to separate a stand-alone sprinkler system from the water
distribution system.
|
P2904.1.1 Required sprinkler locations. If installed
as allowed by Section R313 of this Code as amended by Moscow Mills,
sprinklers shall be installed to protect all areas of a dwelling unit.
|
P3103.1 Roof extension. Open vent pipes that extend
through a roof shall be terminated not less than 12 inches (304 mm)
above the roof or four inches (102 mm) above the anticipated snow
accumulation, whichever is greater. Where a roof is to be used for
assembly, as a promenade, observation deck or sunbathing deck or for
similar purposes, open vent pipes shall terminate not less than seven
feet (2,134 mm) above the roof.
|
P3201.2.1 Trap seal protection. Traps seals of
emergency floor drain traps and traps subject to evaporation shall
be protected by one of the methods in Sections P3201.2.1.1 through
P3201.2.1.4.
|
Exception: Basement floor drains with a deep trap
seal used as a condensate drain.
|
E3902.2 Garage and accessory building receptacles. 125-volt, single-phase, 15- or 20-ampere receptacles installed in
garages and grade-level portions of unfinished accessory buildings
used for storage or work areas shall have ground-fault circuit interrupter
protection for personnel.
| |
Exception: Fastened in place garage door openers.
| |
E3902.5 Unfinished basement receptacles. 125-volt,
single-phase, 15- and 20-ampere receptacles installed in unfinished
basements shall have ground-fault circuit interrupter protection for
personnel. For purposes of this section, unfinished basements are
defined as portions or areas of the basement not intended as habitable
rooms and limited to storage areas, work areas, and similar areas.
| |
Exceptions:
| |
1.
|
A receptacle supplying only a permanently installed fire alarm
or burglar alarm system. Receptacles installed in accordance with
this exception shall not be considered as meeting the requirement
of Section E3901.9.
|
2.
|
Where a simplex receptacle is installed to serve an installed
sump pump.
|
Section E3902.16 Arc-Fault Circuit-Interrupter Protection. Branch circuits that supply 120-volt, single phase, 15- and 20-ampere
outlets installed in bedrooms and sleeping areas shall be protected
by any of following:
| |
Section E3902.17 Arc-fault circuit interrupter protection
for branch circuit extensions or modifications. Where branch-circuit
wiring is modified, replaced, or extended in any of the areas specified
in Section E3902.16, the branch circuit shall be protected by one
of the following:
| |
1.
|
A combination-type AFCI located at the origin of the branch
circuit.
|
2.
|
An outlet branch-circuit type AFCI located at the first receptacle
outlet of the existing branch circuit.
|
Exception: AFCI protection shall not be required
where the extension of the existing conductors is not more than 30
feet (9 m) in length and does not include any additional outlets or
devices.
|
AE101.1 General. These provisions shall be applicable
only to a manufactured home used as a single dwelling unit installed
on any lot and shall apply to the following:
| |
1.
|
Construction, alteration and repair of any foundation system
that is necessary to provide for the installation of a manufactured
home unit.
|
2.
|
Construction, installation, addition, alteration, repair or
maintenance of the building service equipment that is necessary for
connecting manufactured homes to water, fuel, or power supplies and
sewage systems.
|
3.
|
Alterations, additions or repairs to existing manufactured homes.
The construction, alteration, moving, demolition, repair and use of
accessory buildings and structures, and their building service equipment,
shall comply with the requirements of the codes adopted by this jurisdiction.
|
These provisions shall not be applicable to the design and construction
of manufactured homes and shall not be deemed to authorize either
modifications or additions to manufactured homes where otherwise prohibited.
| |
Exception: In addition to these provisions, new
and replacement manufactured homes to be located in flood hazard areas
as established in Table R301.2(1) of the International Residential
Code shall meet the applicable requirements of Section R322 of the
International Residential Code.
|
AE304.1 Permit fees. Fees shall be as established
by the City of Moscow Mills, Missouri.
|
AE304.2 Plan review fees. Delete in its entirety.
|
AE304.3 Other provisions. Delete in its entirety.
|
AE304.3.1 Expiration of plan review. Delete in
its entirety.
|
AE304.3.2 Investigation fees-work without a permit. Delete in its entirety.
|
AE304.3.2.1 Investigation. Delete in its entirety.
|
AE304.3.2.2 Fee. Delete in its entirety.
|
AE304.3.3 Fee refunds. Delete in its entirety.
|
AE304.3.3.1 Permit fee erroneously paid or collected. Delete in its entirety.
|
AE304.3.3.2 Permit fee paid when no work done. Delete
in its entirety.
|
AE304.3.3.3 Plan review fee. Delete in its entirety.
|
AJ102.3 Smoke detectors. Regardless of the category
of work, smoke detectors shall be provided where required by Section
R314.2.2.
|
AJ501.1 Newly constructed elements. Newly constructed
elements, components and systems shall comply with the requirements
of this code.
| |
Exceptions:
| |
1.
|
Openable windows may be added without requiring compliance with
the light and ventilation requirements of Section R303.
|
2.
|
Newly installed electrical equipment shall comply with the requirements
of Section AJ501.5.
|
3.
|
An existing stairway being rebuilt shall not be required to
comply with the requirements of Section R311.7.5 if the existing space
and construction does not allow for a reduction in pitch or slope.
|
AJ501.8 Stairs.
| |
AJ501.8.1 Stair width. Existing stairs and handrails
not otherwise being altered or modified shall be permitted to maintain
their current clear width at, above and below existing handrails.
| |
AJ501.8.2 Stair headroom. Headroom height on existing
stairs being altered or modified shall not be reduced below the existing
stairway finished headroom. Existing stairs not otherwise being altered
shall be permitted to maintain the current finished headroom.
| |
AJ501.8.3 Stair landing. Landings serving existing
stairs being altered or modified shall not be reduced below the existing
stairway landing depth and width. Existing stairs not otherwise being
altered shall be permitted to maintain the current landing depth and
width.
|