City of Warrenton, MO Article IX International Residential Code

Section 500.310 International Residential Code Adoption.

[R.O. 2006 §500.500; Ord. No. 996, 3-3-1998; Ord. No. 1341, 9-16-2003; Ord. No. 2003 §I, 9-6-2011; Ord. No. 2411, 6-5-2018]

A certain document, one (1) copy of which is on file in the office of the City Clerk of the City of Warrenton, being marked and designated as the International Residential Code, 2015 Edition, including Appendix Chapters E, F, G, H, N, and Q, as published by the International Code Council, be and is hereby adopted as the Residential Code of the City of Warrenton in the State of Missouri for regulating and governing the construction, alteration, movement, enlargement, replacement, repair, equipment, location, removal and demolition of detached one- and two-family dwellings and multiple single-family dwellings (town houses) not more than three (3) stories in height with separate means of egress as herein provided; providing for the issuance of permits and collection of fees therefore; and each and all of the regulations, provisions, penalties, conditions and terms of said Residential Code on file in the office of the City Clerk are hereby referred to, adopted, and made a part hereof, as if fully set out in this Section, with the additions, insertions, deletions, and changes, if any, prescribed in Section 500.320 of this Article.

Section 500.320 Amendments to International Residential Code.

[R.O. 2006 §500.510; Ord. No. 1341, 9-16-2003; Ord. No. 1745 §I, 1-15-2008; Ord. No. 1822 §I, 1-6-2009; Ord. No. 2003 §II, 9-6-2011; Ord. No. 2411, 6-5-2018]

A. The following Sections are amendments to the 2015 International Residential Code:

1. R102.5 Appendices. Appendices E, F, G, H, and N are hereby adopted as a part of this code.

2. R103 Creation Of Enforcement Agency. The Building Department is hereby created and the official in charge thereof shall be known as the Building Commissioner. The Building Commissioner shall be the code official as set forth in the 2015 International Residential Code.

3. R103.2 Appointment. Deleted.

4. R103.3 Deputies. Deleted.

5. R105.2 Work Exempt From Permit.

	2.	Deleted
	Deleted
	a.	Plumbing 1. Delete - "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"

6. R106.1 Submittal Documents. Construction documents, special inspection and structural observation programs, and other data shall be submitted in one (1) or more sets with each application for a permit. The construction documents shall be prepared, signed and sealed by a registered design professional licensed and registered in the State of Missouri to render this service. 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.

7. R108.2 Schedule Of Permit Fees. A fee for each permit shall be paid as required in accordance with the schedule contained in Warrenton Municipal Code Section 500.040.

8. R108.5 Refunds. See Warrenton Municipal Code Section 500.040(F).

9. R112.1 General. The Building Board (Warrenton Municipal Code Section 500.070) shall hear and decide appeals of orders, decisions or determinations made by the Building Commissioner relative to the application and interpretation of this code. The Board shall adopt rules of procedure for conducting its business.

10. R112.2 Limitation On Authority. Deleted.

11. R112.2.1 Determination Of Substantial Improvement In Areas Prone To Flooding. Deleted. (See Warrenton Municipal Code Chapter 415)

12. R112.2.2 Criteria For Issuance Of A Variance For Areas Prone To Flooding. Deleted. (See Warrenton Municipal Code Chapter 415)

13. R112.3 Qualifications. Deleted.

14. R113.4 Violation And Penalty. Any person who shall violate provisions of this Article and the codes adopted herein or shall fail to comply with any of the requirements thereof or who shall perform work in violation of an approved plan or directive of the Building Commissioner or of a permit or certificate issued under the provisions of these codes shall be guilty of a misdemeanor punishable by a fine of not more than five hundred dollars ($500.00) or by imprisonment not exceeding ninety (90) days, or both such fine and imprisonment. Each day that a violation continues shall be deemed a separate offense.

15. R301.2 Climatic And Geographic Design Criteria. Buildings shall be constructed in accordance with the provisions of this code as limited by the provisions of this Section. Additional criteria shall be established by the local jurisdiction and set forth in Table R301.2(1) as modified herein.

Table R301.2(1) Climatic and Geographic Design Criteria
	Wind Design			Subject To Damage From
Ground Snow Load	Speedd (mph)	Topo-graphic Effectsk	Seismic Design Cate-goryf	Weather-inga	Frost Line Depthb	Termitec	Winter Design Tempc	Ice Barrier Under-layment Re-quiredh	Flood Haz-ardsg	Air Freezing Indexi	Mean Annual Templ
20 psf	90	No	C	Severe	30 in.	Yes	6° F	No	Sept. 1, 2009	963	55.2

16. R302.5.1 Deleted.

17. R310.2.2 Exception: A platform permanently attached to the wall below the emergency escape and rescue opening to obtain a sill height to the emergency escape and rescue opening not more than forty-four (44) inches from top of platform to the bottom of the window sill shall be acceptable. No more than two (2) risers of seven and three-quarters (7 3/4) inches and minimum platform width of eleven and one-quarter (11 1/4) inch. Applies to homes and apartments existing on January 1, 1997, only.

[Ord. No. 2533, 7-21-2020[1]]

[1] Editor's Note: Pursuant to this ordinance, former Subsection (A)(17) through (24) were renumbered as Subsection (A)(18) through (25), respectively.

18. 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 minimum dimension of thirty-six (36) inches (914 mm) measured in the direction of travel. Exterior landings shall be permitted to have a slope not to exceed one-fourth (1/4) unit vertical in twelve (12) units horizontal two percent (2%).

Exceptions:

a. A top landing is not required where a stairway of four (4) or fewer risers is located on the exterior side of a door, however, a bottom landing is required.

b. Exterior balconies less than sixty (60) square feet (5.6 m²) and only accessible from a door are permitted to have a landing less than thirty-six (36) inches (914 mm) measured in the direction of travel.

19. R311.3.2 Exception: A top landing is not required where a stairway of four (4) or fewer risers is located on the exterior side of the door, provided the door does not swing over the stairway, however, a bottom landing is required.

20. R313 Automatic Fire Sprinkler Systems. Deleted.

21. (Reserved)[2]

[2] Editor's Note: Former Subsection (A)(20), R401.4.3 Over-Excavation, was repealed by Ord. No. 2533, 7-21-2020.

22. R1005.7.1 — Installation. All pre-fabricated metal chimneys shall be enclosed in a shaft with one (1) layer of five-eighths (5/8) inch type "X" gypsum board from the fireplace connector to the underside of the roof sheathing securely attached to the framing material. This shall work as a shaft and not require firestops at floor or ceiling lines. When the chimney is located on the exterior of the structure, it need only be separated by lining the exterior wall adjacent to the shaft by one (1) layer of five-eighths (5/8) inch type "X" gypsum board. All joints are to be tight within one-eighth (1/8) of an inch or taped with joint compound. Required clearances shall be maintained between chimney and the gypsum board per chimney manufacturer's specifications.

23. Table N1102.1.2 Revisions For Climate Zone 4 Except Marine.

Skylight U-Factor = 0.60

Glazed Fenestration SHGC = N/R

Ceiling R-Value = 38

Wood Frame Wall R-Value = 13

Mass Wall R-Value = 5/10

24. N1102.4.1.2.1.

Air Sealing And Insulation. At the builder's discretion, building envelope air tightness and insulation installation shall be demonstrated to comply with one (1) of the following options given by Section N1102.4.1.2 or by a visual inspection performed by an approved party independent from the installer.

25. E3902.16 Arc-Fault Circuit-Interrupter Protection: All 120-volt, single phase, 15- and 20-ampere branch circuits supplying outlets installed in dwelling unit bedrooms shall be protected by a listed arc-fault circuit interrupter, combination-type installed to provide protection of the branch circuit.

Section 500.330 Violation and Penalty.

[Ord. No. 2411, 6-5-2018]

Any person who shall violate provisions of this Article and the codes adopted herein or shall fail to comply with any of the requirements thereof or who shall perform work in violation of an approved plan or directive of the Building Commissioner or of a permit or certificate issued under the provisions of these codes shall be guilty of a misdemeanor punishable by a fine of not more than five hundred dollars ($500.00) or by imprisonment not exceeding ninety (90) days, or both such fine and imprisonment. Each day that a violation continues shall be deemed a separate offense.