Where excessive heat may be created to the detriment
of the occupants or where steam, gases, vapor, dust or other impurities
in the air, which may be injurious to health, may be generated in
the course of commercial or other activities, rooms shall be ventilated
in such manner as to render them harmless to any person therein.
Plans for structures, except one- and two-family
dwellings, designed for human occupancy and filed with the Superintendent
of Buildings shall have designated thereon the number of persons which
the rooms and various spaces are planned to accommodate and shall
contain a simple description of the system of mechanical ventilation,
if any, to be installed in the structure.
In structures hereafter erected, a court required by §
86-21C(2), Windows, shall have a width at every point of at least one inch for each foot that such point is distant from the lowest part of such court but at least four feet. Such a court shall be open and unobstructed for the required widths from its lowest point to the sky, except for ordinary projections, such as window sills, belt courses and similar ornamental projections, to a maximum extent of four inches. When a court is located on the side of a lot or plot, the lot line shall be deemed an enclosure of such court, but when a court opens on a street or open public space, such street or open public space may be considered as part of that court.
If more than one structure is hereafter placed
on any lot or plot or if any structure is placed on the same lot or
plot with an existing structure, the several structures may, for the
purposes of this article, be considered as a single structure.
[Added 3-7-1977 by L.L. No. 4-1977]
Minimum insulation standards for one or two-family
residential construction shall be as follows.
A. The maximum coefficient of heat transmission through
building sections adjacent to heated space shall be:
(2) Exterior walls: U = 0.07.
(3) Foundation walls (applicable to all heated basements
and crawl spaces): U = 0.12.
(4) Floors over unheated basements and crawl spaces (if
foundation walls are not insulated in accordance with A(3) above:
U = 0.08.
(5) Floors over areas open to outside or unheated garage:
U = 0.05.
(7) Entrance doors: U = 0.40.
B. The maximum coefficient of heat transmission through
the insulation material for edge insulation for cement slabs shall
be: U = 0.20.
C. Vapor barriers, weather stripping and sill sealer
shall be used where applicable.
D. The total glazing and entrance door area shall be
limited to 24% of the gross exterior wall area for detached homes
and 33% of the gross exterior wall area for attached homes.
E. Tightly insulated structures require modifications
for providing combustion and ventilation air to fossil fuel space-heating
equipment. The following regulations are to be followed to ensure
proper combustion for one- and two-family residential structures:
(1) Natural gas and propane: two identical standards are
available, the National Fire Protection Association Code No. 54 and
the American National Standards Institute Standard Z223.1.
(2) Oil: the National Fire Protection Association Code
No. 31.
[Added 3-7-1977 by L.L. No. 4-1977]
Minimum insulation standards for multifamily
residential construction shall be as follows:
A. The maximum coefficient of heat transmission through
building sections adjacent to heated space shall be:
(2) Exterior walls: U = 0.07.
(3) Foundation walls (applicable to all heated basements:
U = 0.12.
(4) Floors over unheated basements (if foundation walls
are not insulated in accordance with A(3) above: U = 0.08.
(5) Floors over areas exposed to outside or unheated garages:
J = 0.05.
(7) Service doors, including exterior entrances to individual
units: U = 0.40.
B. The maximum coefficient of heat transmission through
the insulation material for heat ducts in unheated basements shall
be: U = 0.20.
C. Vapor barriers, weather stripping and sill sealer
shall be used where applicable.
D. Main entrance doors shall be of vestibule or revolving
door type permitting minimum infiltration. Vestibule doors shall be
self-closing.
E. The total glazing and entrance door area shall be
limited to 33% of the gross exterior wall area for residential construction
of three stories and under and 42% of the gross exterior wall area
for residential construction over three stories.
F. Tightly insulated structures require modifications
for providing combustion and ventilation air to fossil fuel space-heating
equipment. The following regulations are to be followed to ensure
proper combustion for multifamily residential structures:
(1) Multifamily structures containing less than six dwelling
units utilizing central space-heating equipment or multiple-family
structures of any size utilizing individual space-heating equipment
for each dwelling unit.
(a)
Natural gas and propane: two identical standards
are available, the National Fire Protection Association Code No. 54
and the American National Standards Institute Standard Z223.1.
(b)
Oil: the National Fire Protection Association
Code No. 31.
(2) Multifamily
structures containing six or more dwelling units utilizing central
space-heating equipment. The New York State Industrial Code Rule 4
is to be followed for natural gas, propane and oil space-heating equipment.
[Added 3-7-1977 by L.L. No. 4-1977]
Existing dwellings converting to electric heat shall meet the following requirements of §§
86-29 and
86-30.
A. One- or two-family residential construction:
(2) Subsection
C to be implemented where practical.
B. Multifamily residential construction:
(2) Subsection
C to be implemented where practical.
C. Existing mobile homes converting to electric heat,
built prior to the effective date of the Department of Housing and
Urban Development Mobile Home Construction and Safety Standards, shall
meet the following requirements.
(1) The maximum coefficient of heat transmission through
building sections shall be:
(b)
Entrance doors: U = 0.40.
[Added 3-7-1977 by L.L. No. 4-1977]
The stated U-value of any one assembly, such
as roof or ceiling, wail or floor, may be increased or the window
area may be increased and the U-value for other components decreased,
provided that the overall heat loss for the building envelope does
not exceed the total heat loss which would result from conformance
to the stated individual requirements of the standard. Conformance
to the standard under the exceptions procedure must be certified by
a licensed architect or engineer.
[Added 3-7-1977 by L.L. No. 4-1977]
A. The standard specified in §§
86-29 through
86-32 shall be effective on and after April 1, 1977. Section
86-29 shall apply to all new one- or two-family residential construction for which building permits have not been issued prior to April 1, 1977.
B. In the case of new multifamily residential construction,
the standard shall apply to all dwelling units for which building
permits have not been issued prior to July 1, 1977, or for which substantial
funds have not been advanced nor projects started prior to August
1, 1976.
[Added 3-7-1977 by L.L. No. 4-1977]
A. The requirements imposed by this standard represent
the minimum level of thermal protection for residential construction.
However, in certain instances, particularly in regard to electric
heat, the utilities already may recommend or require a greater degree
of thermal protection than this standard imposes. This standard is
not intended to supersede more stringent recommendations or standards.
B. The thermal protection for mobile homes is controlled
by the Department of Housing and Urban Development Mobile Home Construction
and Safety Standards. In accordance with the Housing and Community
Development Act of 1974, Title VI, cited as the National Mobile Home
Construction and Safety Standards Act of 1974, the federal standard
takes precedent over all state standards.