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HomeMy WebLinkAboutOrdinance No. 2915-2016Sponsored by: Administration CITY OF KENAI LANCE NO. 2915 -2016 AN ORDINANCE OF THE COUNCIL OF THE CITY OF KENAI, ALASKA, AMENDING KMC SECTION 4.32.15 -LOCAL AMENDMENTS TO THE 2012 INTERNATIONAL RESIDENTIAL CODE, BY MAKING LOCAL AMENDMENTS TO THE 2012 EDITION OF THE INTERNATIONAL RESIDENTIAL CODE REGARDING SMOKE ALARMS IN CRAWL SPACES. WHEREAS, the City previously adopted the International Residential Code, 2012 Edition, of the International Code Council, including the appendices with certain local amendments on June 15, 2016 via Ordinance No. 2902 -2016; and, WHEREAS, the City's Building Official recommends an additional amendment to the 2012 Edition of the International Residential Code; and, WHEREAS, requiring a fire alarm in crawl spaces as opposed to fire rated floors above crawl spaces, as required by the 2012 Edition of the International Residential Code, is a reasonable cost effective method of protecting health life and safety supported by the Fire Department and other jurisdictions; and, WHEREAS, it is in the best interest of the City to amend the 2012 Edition of the International Residential Code for the City, in order to protect the health, safety, and welfare of its citizens. NOW, THEREFORE, BE IT ORDAINED BY THE COUNCIL OF THE CITY OF KENAI, ALASKA, as follows: Section 1. Form: That this is a code ordinance. Section 2. Amendment of Section 4.32.015 of the Kenai Municipal Code: That Kenai Municipal Code, Section 4.32.015, Local Amendments to the 2012 International Residential Code, is hereby amended as follows: 4.32.015 Local Amendments to the 2012 International Residential Code. The International Residential Code (2012 Edition) is adopted by reference with the following revisions: R105.2 Work Exempt from Permit. Amend # 1 to read: One story accessory structures used as tool and storage sheds, playhouses and similar uses, provided the floor area does not exceed 120 square feet. Permits are required for any electrical, mechanical or plumbing provided. New Text Underlined; [DELETED TEXT BRACKETED] Ordinance No. 2915 -2016 Page 2 of 8 Amend # 10 to read: Freestanding decks not structurally attached to another building and not exceeding 30 inches above grade. R105.5 Expiration. Amend by adding a new sentence to read: A building permit shall expire two (2) years after the date of issuance unless an extension has been granted as provided in this subsection. R107.3 Temporary Power. Amend by deleting the reference "NFPA 70" and replacing it with "Electrical Code adopted by KMC." R108.2 Schedule of Permit Fees. Delete and replace with: The fees for construction of Group R -3 and Group U -1 occupancies, or portions thereof, are as set forth in the City's schedule of rates, charges and fees adopted by the City Council. Plan review fees shall be fifty percent (50 %) of the building permit fee for Group R -3 and Group U -1. Plan review fees shall be paid at the time applications for building permits are submitted. R108.3 Building Permit Valuations. Amend by inserting a new sentence after the first sentence to read: The Building Valuation Data Table shown in the latest edition of the Building Safety Journal published by the International Code Council shall be used to determine value. R108.4 Related Fees. Amend by inserting a new sentence after the first sentence to read: Any person who commences any work on a building before obtaining the necessary permits shall be subject to an additional fee, equal to the cost of the building permit. Section R112 Board of Appeals. Delete the entire section. Refer to KMC Chapter 4.40. Section R -113.4 Violation Penalties. Delete the entire section. Refer to KMC Chapter 4.40. R301.1.3 Engineered Design. Delete the entire section. R301.2.1.1 Design Criteria. New Text Underlined; [DELETED TEXT BRACKETED] Ordinance No. 2915 -2016 Page 3 of 8 Delete the entire section. Table R301.2(1) Climatic and Geographic Design Criteria. Add the following information to the table: Ground Snow Load 70 PSF Wind Speed 100 mph Seismic Design Category D2 Subject to Damage from: Weathering Yes, severe Frost Line Depth 42" Termite No Decay No Winter Design Temperature -18 deg F Flood Hazards No Ice Shield Underlayment Required Yes Air Freezing Index 3000 Mean Annual Temperature 35 degrees 8301.2.2.1.1 Alternate Determination of Seismic Design Category. Amend by deleting paragraphs R301.2.2.1.1, R301.2.2.1.2, R301.2.2.2, and Table R301.2.2.1.1 and replacing them with the following: The seismic design category for the City of Kenai shall be D2. R301.2.4 Flood Plain Construction. Delete entire section. R302.1 Exterior Wall Location. Amend by deleting Exceptions #3 and #4. R302.2 Exception. Amend by deleting the phrase "one -hour fire resistance rated wall" and replacing it with "two -hour fire resistance rated wall unless sprinklered per NFPA 13D." R302.2.4 Structural Independence. Delete Exception #5 and replace with: 5. Townhouses separated by a common 2 -hour fire resistance rated wall as provided in Section R302.2 or a 1 -hour wall as provided in Section R302.2 and sprinklered per NFPA 13D. R302.5.1 Opening Protection. Amend the second sentence by adding the words "self closing" before the words "solid wood doors." New Text Underlined; [DELETED TEXT BRACKETED] Ordinance No. 2915 -2016 Page 4 of 8 Table R302.6 Dwelling /Garage Separation. Amend by replacing all references to 1/2 -inch material to 5/8 -inch material. R313 Automatic Fire Sprinkler Systems. Delete the entire section. R314.3 Location. Amend the first sentence of #3 to read: R315.1, 315.2 and 315.3. Delete and replace as follows: R315.1. At least one carbon monoxide detector or alarm shall be installed on each floor level. If a floor level contains bedrooms or sleeping rooms, at least one detector shall be located in the immediate vicinity of the sleeping area, outside of the bedrooms or sleeping rooms. Carbon monoxide detectors and alarms shall be installed in accordance with their listing. The alarm shall be clearly audible in all sleeping rooms, even if the intervening doors are closed. Exceptions: 1. Carbon monoxide detectors and alarms are not required in dwelling units that have all of the following: a. No combustion appliances; b. No attached garage; C. No vehicle parking within 25 feet of any direct air intake opening. 315.2 Interconnection. In new construction, all carbon monoxide detectors and alarms located within a single dwelling unit shall be interconnected in such a manner that actuation of one alarm shall activate all of the alarms within the individual dwelling unit. 315.3 Power Source. In new construction, carbon monoxide detectors and alarms shall receive their primary power from the building wiring if the wiring is served from a commercial source, and shall be equipped with a battery backup. Wiring shall be permanent and without a disconnecting switch other than what is required for overcurrent protection. In existing construction, carbon monoxide detectors and alarms may be powered by battery or a cord - and -plug with battery backup. R315.4 Alterations, Repairs, and Additions. Add a new section as follows: R315.4 Alterations, Repairs, and Additions. When interior alterations, repairs, or additions requiring a permit occur, or when one or more sleeping rooms are added or created in existing dwellings, the individual dwelling unit shall be provided with carbon monoxide detectors as required in Section R315.1. Carbon monoxide detectors shall be New Text Underlined; [DELETED TEXT BRACKETED] Ordinance No. 2915 -2016 Page 5 of 8 permitted to be electrical outlet type with battery back up when installed in existing buildings that undergo alterations, repairs, or additions that do not result in the removal of the interior wall or ceiling finishes exposing the structure. R316.5.4 Crawl Spaces. Add the following: Exception: Foam plastics used in crawl space areas do not require thermal barrier provided the following conditions are met: 1. Entry to crawl space is only to serve utilities. 2. There are no interconnected basement areas. 3. Air to the crawl space is not circulated to other parts of the building. 4. Foam plastic does not exceed a 2 -inch thickness and a 2.5 pounds per cubic foot nominal density. 5. Ventilation complying with section R408 is provided. 6. No gas -fired equipment is located in crawl space. R322 Flood Resistant Construction. Delete entire section. R401.1 Application. Add the following exception 3: Wood foundations shall have a minimum 16 -inch x 10 -inch reinforced concrete footing. R402.1.3 Restraint for Wood Foundations. Add a new subsection, R402.1.3 Restraint for Wood Foundations, to read: Basement. A 4 -inch thick concrete slab poured against the studs. If a wooden screed is used, it shall be pressure treated Douglas fir or hem fir. Crawlspace. Option 1: A minimum 5 -inch wide by 4 -inch deep concrete curb poured against the inside face of the studs. The kicker shall be reinforced with a continuous horizontal No. 3 reinforcing bar. If the kicker is not poured with the continuous concrete footing, it may be poured later provided vertical #3 reinforcing bars x 10 inches long shall be cast into the footing at 2 feet on center. They shall extend 2 inches above the top of the footing. The continuous #3 bar shall be secured to the vertical #3 bars. Option 2: Installation of preservative treated 4" x 4 "s with a minimum 1/2" x 12" galvanized anchor bolts at 24" O.C. installed in footing against the inside face of studs along the entire perimeter. Exception: The above need not apply if a suitable alternate design is prepared by an engineer registered in the State of Alaska and is approved by the Building Official. R402.1.4 Dampproofing for Wood Foundation Walls. New Text Underlined; [DELETED TEXT BRACKETED] Ordinance No. 2915 -2016 Page 6 of 8 Add a new subsection, R402.1.4 Dampproofmg for Wood Foundation Walls, to read: Approved dampproofmg shall be applied over the below -grade portion of exterior basement and crawlspace walls prior to backfilling. A treated lumber or plywood strip shall be attached to the wall to cover the top edge of the approved dampproofing. The wood strip shall extend at least two (2) inches above and five (5) inches below finish grade level to protect the approved dampproofing from exposure to light and from mechanical damage at or near grade. The joint between the strip and the wall shall be caulked full length prior to fastening the strip to the wall. Alternatively, brick, stucco, or other covering appropriate to the architectural treatment may be used in place of the wood strip. The approved dampproofing shall extend down to the bottom of the concrete footing. R403.1.1 Minimum Size. Amend the third sentence to read: All footings shall be at least 10 inches in thickness. R403.1.3 Seismic Reinforcing. Revise the second paragraph first sentence by changing "4 feet" to "24 inches." Revise the third paragraph first sentence by changing the number "4" to "5" and the words "4 feet" to "32 inches." Revise the exception by deleting the words "Plain" and add the following to the end of the sentence: "Provided wood framing is mechanically tied to isolated footings." R403.1.3.1 Foundations with Stemwalls. Delete and replace with: Foundations with stemwalls shall be provided with a minimum of one No. 4 bar at the top of the wall for concrete masonry unit stemwalls, one No. 4 bar at the top of the wall for poured concrete stemwalls, and two No. 5 bars at the bottom of all footings. R403.1.3.2 Slabs -on- Ground with Turned -Down Footings. Amend the first sentence by changing the number "4" to "5." Amend the exception by deleting the phrase "one No. 5 bar" and replacing it with "two No. 5 bars." Further amend the exception by deleting the phrase "or two No. 4 bars." R403.1.6 Foundation Anchorage. Amend by deleting the phrase "6 feet on center" and replacing it with "four feet on center." Further amend by deleting the measure of "1 /2 inch" and replacing it with "5/8 inch." R404.1.4 Seismic Design Category[ -IFS] D0, D1 AND D2. New Text Underlined; [DELETED TEXT BRACKETED] Ordinance No. 2915 -2016 Page 7 of 8 Add Subsection 5 to read "minimum reinforcement shall consist of No. 4 horizontal bar placed at 24" on center for poured concrete walls and No. 5 horizontal bar placed at 48" on center for CMU walls." Revise Subsection 3 by deleting the word "plain." Revise Subsection 4 by changing the changing the number "3" to "5" and the words "4 feet" to "32 inches" and adding to the end of the paragraph "and minimum vertical reinforcement of one No. 4 bar located a maximum of 24 inches on center in poured concrete walls." R404.2 Wood Foundation Walls. Delete the following from the first sentence: "and with the details shown in figures R403.1(2) and R403.1(3). R404.3 Wood Sill Plates. Delete the paragraph and substitute with the following: Wood sill plates shall be minimum 2 -inch x 6 -inch and shall be bolted to the foundation or foundation wall with not less than ten (10) inch -long by five- eights (5/8) inch nominal diameter galvanized steel bolts embedded at least seven (7) inches into the concrete or in fully grouted cells of reinforced masonry and spaced not more than four (4) feet zero (0) inches apart. There shall be a minimum of two bolts per piece with one bolt located within 12 inches of each end of each piece. Wood sill plates must be treated material specified in Section R323.1. R501.3 Fire Protection of Floors. Delete the entire section. R702.3.5 Table Minimum Thickness and Application of Gypsum Board. Delete the column for nails as a fastener. R702.3.6 Fastening. Amend by adding the following sentence at the end of the paragraph: Gypsum board shall be attached with screws. Nails are not allowed. R806.1 Ventilation Required. Amend by adding the following sentence to the end of the paragraph: A non - ventilated roof system may be allowed as an alternate method when its design is approved by the Building Official. Chapters 11 through 42. Amend by deleting Chapters 11 through 42 in their entirety. Instead, refer to other applicable codes as adopted in KMC. Section 3. Severability: That if any part or provision of this ordinance or application thereof to any person or circumstances is adjudged invalid by any court of competent jurisdiction, such judgment shall be confined in its operation to the part, provision, or New Text Underlined; [DELETED TEXT BRACKETED] Ordinance No. 2915 -2016 Page 8 of 8 application directly involved in all controversy in which this judgment shall have been rendered, and shall not affect or impair the validity of the remainder of this title or application thereof to other persons or circumstances. The City Council hereby declares that it would have enacted the remainder of this ordinance even without such part, provision, or application. Section 4. Effective Date: That pursuant to KMC 1.15.070(fl, this ordinance shall take effect 30 days after adoption. ENACTED BY THE COUNCIL OF THE CITY OF KENAI, ALASKA, this 21st day of September, 2016. PAT PORTER, MAYOR Introduced: August 17, 2016 Enacted: September 21, 2016 Effective: October 21, 2016 New Text Underlined; [DELETED TEXT BRACKETED] "Villaye with a Past, C# with a fidure \� 210 Fidalgo Avenue, Kenai, Alaska 99611 -7794 - + Telephone: 907 - 283 -7535 / FAX: 907 - 283 -3014 ,IIII' \ the city of ,I 1992 V MEMO* TO: Mayor Porter and Council Members FROM: Michael Wesson, Building Official PV DATE: August 9, 2016 SUBJECT: 2012 International Residential Code Revision The newly adopted 2012 International Building Code contains a new section within the Code that requires floors above crawl spaces to be fire rated in certain situations. This particular requirement would be required in most residences here in Kenai. This code section creates a burden on contractors both financially and logistically. Previous Building Official, Larry Floyd, the Kenai Fire Department and other jurisdictions in the area, all agreed that a suitable alternative would be to require a smoke alarm in the crawl space that is tied into the alarm system. This serves as an early warning system in the case of a fire in the crawl space. I therefore recommend amending the currently adopted 2012 International Residential Code to address this issue.