HomeMy WebLinkAboutOrdinance No. 2664-2012Suggested by: Administration
ls� CITY OF KENAI
KENAI. ALASKA
ORDINANCE NO. 2664 -2012
AN ORDINANCE OF THE COUNCIL OF THE CITY OF KENAI, ALASKA, AMENDING
CHAPTER 4.32, RESIDENTIAL CODE, BY ADOPTING THE 2009 EDITION OF THE
INTERNATIONAL RESIDENTIAL CODE AND MAKING LOCAL AMENDMENTS.
WHEREAS, the City previously adopted the International Residential Code, 2006
Edition, of the International Code Council, including the appendices with certain local
amendments; and,
WHEREAS, the International Code Council updated the International Residential Code
in 2009; and,
WHEREAS, the City's Building Official accordingly recommends adoption of the 2009
Edition of the International Residential Code, with certain amendments; and,
WHEREAS, it is in the best interest of the City to adopt the 2009 Edition of the
International Residential Code and the updated standards therein, as amended 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: This is a Code ordinance.
Section 2. Amendment of Chanter 4.32 of the Kenai Municipal Code: The Kenai
Municipal Code, Chapter 4.32, Residential Code, is hereby amended as follows:
Chapter 4.32
RESIDENTIAL CODE
4.32.010 Adoption.
4.32.015 Local amendments to the 200[6]9 International Residential Code.
4.32.020 Building Official.
4.32.030 Fee schedule.
4.32.010 Adoption.
There is hereby adopted for the purpose of establishing rules and regulations
for the construction, alteration, movement, enlargement, replacement, repair,
equipment, use and occupancy, location, removal and demolition of detached one and
two family dwellings and multiple single - family dwellings, that certain code known as
the "International Residential Code," 200[6]9 Edition, of the International Code
Council, including the appendices, except for such portions as are hereafter deleted,
Ordinance No. 2664 -2012
Page 2 of 19
modified, or amended; and the same is hereby adopted and incorporated as fully as if
set out verbatim herein.
4.32.015 Local amendments to the 200[6]9 International Residential Code.
[R105.5.
ADD THE FOLLOWING: 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 THE LAST SENTENCE BY CHANGING "ICC ELECTRICAL CODE" TO
"ELECTRICAL CODE ADOPTED BY KMC."
R108.3 BUILDING PERMIT VALUATIONS.
ADD THE FOLLOWING AFTER THE FIRST SENTENCE:
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.
ADD THE FOLLOWING AFTER THE FIRST SENTENCE:
ANY PERSON WHO COMMENCES ANY WORK ON A
OBTAINING THE NECESSARY PERMITS SHALL BE SUBJECT
FEE, EQUAL TO THE COST OF THE BUILDING PERMIT,
ADDITION TO THE REQUIRED PERMIT FEES.
SECTION R112 BOARD OF APPEALS.
DELETE ENTIRE SECTION.
REFER TO "CHAPTER 4.40 OF KMC."
New Text Underlined; [DELETED TEXT BRACKETED]
BUILDING BEFORE
TO AN ADDITIONAL
THAT SHALL BE IN
Ordinance No. 2664 -2012
Page 3 of 19
TABLE R301.2(1) CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA.
ADD THE FOLLOWING INFORMATION IN 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 UNDER-
LAYMENT REQUIRED
YES
AIR FREEZING INDEX
3000
MEAN ANNUAL
TEMPERATURE
35
DEGREES
R301.2.2.1.1 ALTERNATE DETERMINATION OF SEISMIC DESIGN
CATEGORY.
DELETE PARAGRAPHS R301.2.2.1.L, R301.2.2.1.2, R301.2.2.2, AND TABLE
R301.2.2.1.1 AND REPLACE WITH THE FOLLOWING:
THE SEISMIC DESIGN CATEGORY FOR KENAI SHALL BE D2.
R309.1 OPENING PROTECTION FOR FIRE RATINGS FOR ATTACHED
GARAGES.
AMEND BY ADDING A THIRD SENTENCE TO READ AS FOLLOWS:
DOORS SHALL BE SELF - CLOSING AND HAVE SMOKE GASKETS AT TOP AND
SIDES OF DOORS AND ADJUSTABLE THRESHOLD OR SWEEP.
R309.2 SEPARATION REQUIRED.
AMEND BY DELETING THE FIRST TWO SENTENCES AND REPLACING WITH
THE FOLLOWING:
New Text Underlined; [DELETED TEXT BRACKETED]
i
Ordinance No. 2664 -2012
Page 4 of 19
A GARAGE SHALL BE SEPARATED FROM THE RESIDENCE AND ITS ATTIC
AREA WITH A ONE -HOUR OCCUPANCY SEPARATION. THE OCCUPANCY
SEPARATION MAY BE LIMITED TO THE INSTALLATION OF APPROVED MATERIALS
APPROVED FOR ONE -HOUR FIRE RESISTANCE CONSTRUCTION ON THE GARAGE
SIDE ONLY. 5/8 TYPE X GYPSUM WALLBOARD WILL BE CONSIDERED ADEQUATE
PROTECTION FOR ONE -HOUR CONSTRUCTION ON THE GARAGE SIDE AT RATED
WALLS AND CEILINGS. ALL PLASTIC PIPE SUCH AS CONDENSATE LINES, VACUUM
LINES, DRAIN LINES, WASTE LINES AND VENT LINES REQUIRE AN APPROVED
TESTED FIRE COLLAR OR EQUIVALENT AT RATED WALL AND CEILING
PENETRATIONS ON GARAGE SIDE ONLY. ALL FERROUS METAL PIPE
PENETRATIONS ARE REQUIRED TO BE FILLED WITH GYPSUM WALLBOARD
COMPOUND OR OTHER APPROVED MATERIALS. FIRE DAMPERS NEED NOT BE
INSTALLED IN AIR DUCTS PASSING THROUGH THE WALL, FLOOR, OR CEILING
SEPARATING GARAGE FROM THE DWELLING, PROVIDED SUCH DUCTS WITHIN
THE GARAGE ARE CONSTRUCTED OF STEEL HAVING THICKNESS NOT LESS THAN
0.019 INCH (0.48 MM) (NO. 26 GALVANIZED SHEET GAUGE) AND HAVE NO
OPENING INTO THE GARAGE.
ACCESS TO A CRAWL SPACE FROM A GARAGE SHALL MEET MINIMUM
REQUIREMENTS OF SELF - CLOSING, TIGHT FITTING, SOLID WOOD DOOR
MEASURING 1 3/8 INCHES OR GREATER IN THICKNESS, OR EQUIVALENT
LAMINATED PLYWOOD OR COMBINATION PLYWOOD AND PROPERLY SECURED
5/8 INCH TYPE X GYPSUM WALLBOARD OR 20- MINUTE APPROVED DOOR
ASSEMBLY.
R313.4 CARBON MONOXIDE DETECTORS.
ADD A NEW SUBSECTION, R313.4, CARBON MONOXIDE DETECTORS, TO
READ AS FOLLOWS:
CARBON MONOXIDE DETECTORS SHALL BE INSTALLED ON EACH FLOOR
LEVEL OF DWELLING UNITS. WHERE THERE ARE SLEEPING ROOMS ON A FLOOR,
THE DETECTOR SHALL BE PLACED OUTSIDE OF THE SLEEPING ROOMS. THE
ALARM SHALL BE CLEARLY AUDIBLE IN ALL BEDROOMS OVER BACKGROUND
NOISE LEVELS WITH ALL INTERVENING DOORS CLOSED. ALL CARBON MONOXIDE
DETECTORS SHALL BE LISTED AND INSTALLED IN ACCORDANCE WITH THE
PROVISIONS OF THIS CODE.
R313.4.1 ALTERATIONS, REPAIRS, AND ADDITIONS.
ADD A NEW SUBSECTION, R313.4.1, ALTERATIONS, REPAIRS, AND
ADDITIONS, TO READ AS FOLLOWS:
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
R313.4 AND R313.4.1.
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Ordinance No. 2664 -2012
Page 5 of 19
R313.4.2 POWER SOURCE.
ADD A NEW SUBSECTION, R313.4.2, POWER SOURCE, TO READ AS
FOLLOWS:
IN NEW CONSTRUCTION, THE REQUIRED CARBON MONOXIDE DETECTORS
SHALL RECEIVE THEIR PRIMARY POWER FROM THE BUILDING WIRING SYSTEM,
AND WHEN PRIMARY POWER IS INTERRUPTED, SHALL RECEIVE POWER FROM A
BATTERY. WIRING SHALL BE PERMANENT AND WITHOUT A DISCONNECTING
SWITCH OTHER THAN THOSE REQUIRED FOR OVER CURRENT PROTECTION.
CARBON MONOXIDE DETECTORS SHALL BE 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.
R314.1.2 THERMAL BARRIER.
ADD THE FOLLOWING:
EXCEPTION: FOAM PLASTICS USED IN CRAWL SPACE AREAS DO NOT
REQUIRE THERMAL BARRIER PROVIDED THE FOLLOWING CONDITIONS ARE
MET:
ENTRY TO CRAWLSPACE 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.
R318 MOISTURE VAPOR RETARDERS.
DELETE PARAGRAPH AND EXCEPTIONS AND ADD THE FOLLOWING:
VAPOR RETARDERS. ALL EXTERIOR WALL, CEILING, ROOF AND FLOOR
ASSEMBLIES WHICH ENCLOSE HEATED SPACES AND WHICH ARE EXPOSED TO
OUTDOOR AMBIENT TEMPERATURES SHALL BE PROTECTED AGAINST WATER
VAPOR TRANSMISSION. ASSEMBLIES NOT OTHERWISE OF IMPERMEABLE
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Ordinance No. 2664 -2012
Page 6 of 19
CONSTRUCTION SHALL HAVE INSTALLED, ON THE HEATED SIDE OF THE
INSULATION OR AIR SPACES, VAPOR RETARDERS HAVING A PERM RATING OF
0.06 MINIMUM (EQUIVALENT TO 6 MILS POLYETHYLENE SHEETING) OR OTHER
MATERIAL APPROVED BY THE BUILDING OFFICIAL.
R319.3 FASTENERS
DELETE EXCEPTION 1.
R401.1 APPLICATION.
ADD THE FOLLOWING EXCEPTION:
WOOD FOUNDATIONS SHALL HAVE A 16 -INCH X 10 -INCH REINFORCED
CONCRETE FOOTING MINIMUM.
R402.1.3 RESTRAINT FOR WOOD FOUNDATIONS.
ADD A NEW SUBSECTION, R402.1.3, RESTRAINT FOR WOOD FOUNDATIONS,
TO READ AS FOLLOWS:
BASEMENT.
A 4 -INCH THICK CONCRETE SLAB POURED AGAINST THE STUDS. IF A
WOODEN SCREED IS USED, IT SHALL BE DOUGLAS FIR OR HEM FIR PRESSURE
TREATED IN ACCORDANCE WITH AWPA C22 WITH A.6 RETENTION.
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 X10
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.
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Ordinance No. 2664 -2012
Page 7 of 19
ADD A NEW SUBSECTION, R402.1.4, DAMPPROOFING FOR WOOD
FOUNDATION WALLS, TO READ AS FOLLOWS:
APPROVED DAMPPROOFING 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.
REVISE 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 "FOUR FEET" TO "32 INCHES."
REVISE THE EXCEPTION BY DELETING THE WORDS "PLAIN CONCRETE
FOOTINGS WITHOUT LONGITUDINAL REINFORCEMENT SUPPORTING WALLS AND,"
AND ADD THE FOLLOWING:
"PROVIDED WOOD FRAMING IS MECHANICALLY TIED TO ISOLATED
FOOTINGS."
R403.1.3.1 FOUNDATIONS WITH STEMWALLS.
REVISE TO READ AS FOLLOWS:
FOUNDATIONS WITH STEMWALLS SHALL BE PROVIDED WITH A MINIMUM
OF ONE NO. 5 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.
REVISE THE FIRST SENTENCE BY CHANGING THE NUMBER "4" TO "5."
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Ordinance No. 2664 -2012
Page 8 of 19
REVISE THE EXCEPTION BY CHANGING THE WORDS "ONE NO. 5 BAR" TO
"TWO NO. 5 BARS" AND DELETING THE WORDS "OR TWO NO. 4 BARS."
R403.2 FOOTINGS FOR WOOD FOUNDATIONS.
DELETE ENTIRE PARAGRAPH AND REPLACE WITH THE FOLLOWING:
WOOD FOUNDATIONS SHALL HAVE A 16- INCH -WIDE X 10- INCH -THICK
CONCRETE FOOTING MINIMUM.
R404.1.4 SEISMIC DESIGN CATEGORIES D1 AND D2.
REVISE SUBSECTION 1. TO READ "MINIMUM REINFORCEMENT SHALL
CONSIST OF NO. 4 HORIZONTAL BAR PLACED AT 16" ON CENTER FOR POURED
CONCRETE WALLS AND NO. 5 HORIZONTAL BAR PLACED AT 48" ON CENTER FOR
CMU WALLS."
REVISE SUBSECTION 4 BY DELETING THE FOLLOWING WORD "PLAIN" IN
TWO LOCATIONS AND ADDING AT THE END OF THE SENTENCE "AND SUPPORTING
ONE FLOOR ONLY."
REVISE SUBSECTION 5 BY DELETING THE WORD "PLAIN."
REVISE SECOND PARAGRAPH BY 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."
REVISE BY DELETING THE LAST PARAGRAPH.
R404.2 WOOD FOUNDATION WALLS.
DELETE THE FOLLOWING FROM THE FIRST SENTENCE: "AND WITH THE
DETAILS SHOWN IN FIGURES R403.1(2) AND R403.L(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- EIGHTHS (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.
New Text Underlined: [DELETED TEXT BRACKETED]
Ordinance No. 2664 -2012
Page 9 of 19
R404.4.6.2 HORIZONTAL
REVISE THE FIRST SENTENCE BY CHANGING THE NUMBER "48" TO "16."
REVISE THE SECOND SENTENCE BY CHANGING THE NUMBER "36" TO "16."
:aa
EXCEPTION: OR PER MANUFACTURER'S REQUIREMENTS.
R404.4.6.4 VERTICAL
ADD NEW SECTION TO READ:
VERTICAL REINFORCEMENT SHALL BE A MINIMUM OF NO. 4 VERTICAL
REINFORCING BAR PLACED AT 24 INCHES ON CENTER.
R406.1 CONCRETE AND MASONRY FOUNDATION DAMPPROOFING.
DELETE SECTION AND SUBSTITUTE WITH THE FOLLOWING:
EXCEPT WHERE REQUIRED TO BE WATERPROOFED BY SECTION R406.2, IN
DWELLING UNITS ONLY FOUNDATION WALLS THAT RETAIN EARTH AND ENCLOSE
HABITABLE OR USABLE SPACES LOCATED BELOW GRADE SHALL BE
DAMPPROOFED FROM THE TOP OF THE FOOTING TO THE FINISHED GRADE AND
DAMPPROOFING SHALL COVER THE TOP OF THE FOOTING, AND LAP OVER THE
OUTER EDGE A MINIMUM OF 1 INCH. MASONRY WALLS SHALL BE DAMPPROOFED
WITH A BITUMINOUS COATING, 3 POUNDS PER SQUARE YARD (1.63 KG /M2) OF
ACRYLIC MODIFIED CEMENT, 1/8 -INCH (3.2 MM) COAT OF SURFACE- BONDING
MORTAR COMPLYING WITH ASTM C 887 OR ANY MATERIAL PERMITTED FOR
WATERPROOFING IN SECTION R406.2. CONCRETE WALLS SHALL BE
DAMPPROOFED BY APPLYING ANY ONE OF THE ABOVE LISTED DAMPPROOFING
MATERIALS OR ANY ONE OF THE WATERPROOFING MATERIALS LISTED IN
SECTION R406.2 TO THE EXTERIOR OF THE WALL. FOUNDATION WALLS THAT
ARE BACKFILLED ON BOTH SIDES, SUCH AS THOSE USED IN CONJUNCTION WITH
A "SLAB ON GRADE" DO NOT REQUIRE DAMPPROOFING OR WATERPROOFING.
R406.2 CONCRETE MASONRY FOUNDATION WATERPROOFING.
DELETE THE FOLLOWING WORDS FROM THE SECOND SENTENCE:
6 MIL (0.15 MM) POLYVINYL CHLORIDE, 6 MIL (0.15 MM) POLYETHYLENE.
ADD THE FOLLOWING WORDS:
FOUNDATION WALLS THAT ARE BACKFILLED ON BOTH SIDES, SUCH AS
THOSE USED IN CONJUNCTION WITH A "SLAB ON GRADE" DO NOT REQUIRE
DAMPPROOFING OR WATER PROOFING.
i
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Ordinance No. 2664 -2012
Page 10 of 19
/- R406.3.2 BELOW GRADE MOISTURE BARRIER.
DELETE AND SUBSTITUTE THE FOLLOWING:
FOUNDATION WALLS LOCATED BELOW GRADE SHALL BE DAMPPROOFED
WITH EITHER 2 -PLY OF 15 LB. HOT - MOPPED FELT OR 1 PLY OF 30 LB. HOT -
MOPPED FELT OR OTHER APPROVED MATERIALS.
R407.2 STEEL COLUMN PROTECTION.
DELETE THIS SECTION IN ITS ENTIRETY.
R408.6 FINISHED GRADE.
DELETE THIS SECTION IN ITS ENTIRETY.
R702.3.1 MATERIALS.
ADD A SENTENCE TO LAST PARAGRAPH AS FOLLOWS:
WATER RESISTANT GYPSUM BOARD SHALL NOT BE USED ON EXTERIOR
WALLS.
R702.3.6 FASTENING.
ADD THE FOLLOWING SENTENCE AT THE END OF THE PARAGRAPH:
GYPSUM BOARD APPLIED IN CEILINGS SHALL BE ATTACHED WITH
SCREWS. NAILS ARE NOT ALLOWED.
R802.3 FRAMING DETAILS.
AMEND SUBSECTION 802.3 BY ADDING A PARAGRAPH AS FOLLOWS:
MINIMUM DEPTH FROM ROOF SHEATHING TO WALL PLATE AT EXTERIOR
WALLS TO BE 9 INCHES ON DWELLING UNITS.
R802.10.2 DESIGN.
ADD THE FOLLOWING SENTENCE AT THE END OF THE PARAGRAPH:
MINIMUM DEPTH OF TRUSS AT EXTERIOR WALL PLATE TO BE 9 INCHES ON
DWELLING UNITS.
R806.1 VENTILATION REQUIRED.
ADD THE FOLLOWING SENTENCE TO END OF PARAGRAPH:
New Test Underlined; [DELETED TEXT BRACKETED]
Ordinance No. 2664 -2012
Page 11 of 19
A NON - VENTILATED ROOF SYSTEM MAY BE ALLOWED AS AN ALTERNATE
METHOD WHEN ITS DESIGN IS APPROVED BY THE BUILDING OFFICIAL.
R905.2.2 SLOPE.
DELETE THE PARAGRAPH AND REPLACE WITH THE FOLLOWING:
ASPHALT SHINGLES SHALL ONLY BE USED ON ROOF SLOPES OF THREE
UNITS VERTICAL IN 12 UNITS HORIZONTAL OR GREATER. UNDERLAYMENT SHALL
BE IN ACCORDANCE WITH SECTION R905.2.7 AND ICE PROTECTION SHALL BE IN
ACCORDANCE WITH R905.2.7.1.
R905.2.7 UNDERLAYMENT APPLICATION.
DELETE PARAGRAPH AND REPLACE WITH THE FOLLOWING:
FOR ROOF SLOPES FROM 3 VERTICAL UNITS IN 12 HORIZONTAL UNITS
(3:12) UP TO 4 VERTICAL UNITS IN 12 HORIZONTAL UNITS (4:12), UNDERLAYMENT
SHALL BE TWO LAYERS OF NON - PERFORATED TYPE 15 FELT APPLIED SHINGLE
FASHION. UNDERLAYMENT SHALL BE INSTALLED STARTING WITH A 19 -INCH LAP
OVER ICE PROTECTION. EACH SUBSEQUENT SHEET SHALL BE LAPPED 19
INCHES HORIZONTALLY, CONTINUING TO THE RIDGE, FASTENED SUFFICIENTLY
TO HOLD IN PLACE.
FOR SLOPES 4 UNITS VERTICAL IN 12 UNITS HORIZONTAL (4:12), OR
GREATER UNDERLAYMENT SHALL BE ONE LAYER OF TYPE 15 FELT.
UNDERLAYMENT SHALL BE INSTALLED STARTING WITH 4 -INCH LAP OVER ICE
PROTECTION. EACH SUBSEQUENT LAYER SHALL BE LAPPED 2 INCHES
HORIZONTALLY AND 4 INCHES VERTICALLY TO SHED WATER CONTINUING TO
THE RIDGE, FASTENED SUFFICIENTLY TO HOLD IN PLACE. ICE PROTECTION WILL
BE IN ACCORDANCE WITH R905.2.7.1.
R905.2.8 FLASHING
ADD THE FOLLOWING AT THE END OF THE PARAGRAPH:
FLASHING SHALL BE NOT LESS THAN 4 INCHES BY 4 INCHES IN WIDTH.
R905.9.1 SLOPE.
DELETE THE WORDS: "EXCEPT FOR COAL -TAR BUILT -UP ROOFS, WHICH
SHALL HAVE A DESIGN SLOPE OF A MINIMUM ONE - EIGHTH UNIT VERTICAL IN 12
UNITS HORIZONTAL (1- PERCENT SLOPE)."
R905.10.2 SLOPE.
ADD THE FOLLOWING TO THE END OF THE PARAGRAPH:
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Ordinance No. 2664 -2012
Page 12 of 19
INSTALL UNDERLAYMENT UNDER ALL METAL ROOF PANELS.
UNDERLAYMENT SHALL BE ONE LAYER OF TYPE 15 FELT. UNDERLAYMENT SHALL
BE INSTALLED, STARTING WITH 4 -INCH LAP -OVER ICE PROTECTION. EACH
SUBSEQUENT LAYER SHALL BE LAPPED 2 INCHES HORIZONTALLY, AND 4 INCH
VERTICALLY TO SHED WATER CONTINUING TO THE RIDGE. FASTEN
SUFFICIENTLY TO HOLD IN PLACE. ICE PROTECTION SHALL BE IN ACCORDANCE
WITH R905.2.7.1."
CHAPTERS 11 -42.
AMEND BY DELETING CHAPTERS 11 -42 IN ITS ENTIRETY AND REFERRING
TO APPLICABLE CODES AS ADOPTED IN KMC.]
The International Residential Code (2009 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.
Amend #10 to read: Free standing 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 "ICC Electrical Code" 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 Grout) 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 Safetv
Journal published by the International Code Council shall be used to determine value.
New Text Underlined; [DELETED TEXT BRACKETED]
Ordinance No. 2664 -2012
Page 13 of 19
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.
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
110 mph
Seismic Design Category
D2
Subiect 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
Yes
required
Air freezing index
3000
Mean annual
temperature
35 degrees
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Ordinance No. 2664 -2012
Page 14 of 19
R301.2.2.1.1 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."
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.
R315.1. 315.2 and 315.3.
Delete and replace as follows:
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Ordinance No. 2664 -2012
Page 15 of 19
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
the removal of the interior wall or ceiling finishes exposing the structure.
R322 Flood Resistant Construction
Delete entire section.
R401.2 Requirements.
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Ordinance No. 2664 -2012
Page 16 of 19
Add the following exception:
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 x10
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 Dampproofin¢ for wood foundation walls.
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 dampproofmg 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 ioint 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
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Ordinance No. 2664 -2012
Page 17 of 19
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.
Delete the exception.
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
"S /8 inch."
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.
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Ordinance No. 2664 -2012
Page 18 of 19
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
droved by the Building Official.
Chanters 11 -42.
Amend by deleting Chapters 11 -42 in their entirety. Instead, refer to other
applicable codes as adopted in KMC.
4.32.020 Building Official.
The Building Official of this City shall have the powers, duties, and functions
prescribed for the "Building Official" by the International Residential Code adopted by
KMC 4.32.010, provided the powers, duties and functions may be performed by
authorized representatives of the Building Official and under his or her supervision
and control.
4.32.030 Fee schedule.
Fees or charges under the International Residential Code as adopted by this
Chapter shall be as set forth in the City's schedule of rates, charges and fees adopted
by the City Council and the local amendments for section R108.2 in KMC 4.32.015.
[SECTION R108.2 OF THE INTERNATIONAL RESIDENTIAL CODE ADOPTED
BY THIS CHAPTER IS AMENDED TO READ:
ADD THE FOLLOWING TO THE END OF THE PARAGRAPH:
THE FEES FOR CONSTRUCTION OF GROUP R -3 AND GROUP U -1
OCCUPANCIES, OR PORTIONS THEREOF, AS SET FORTH IN THE CITY'S SCHEDULE
OF 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.]
Section 3. Severability: 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
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: Pursuant to KMC 1.15.070(fl, this ordinance shall take
effect one month after adoption.
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Ordinance No. 2664 -2012
Page 19 of 19
ATTEST:
S dr Mod h, C C
Ci Cl rk
.J
PAT PORTER, MAYOR
Introduced: December 19, 2012
Adopted: January 2, 2013
Effective: February 2, 2013
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M
Memorandum
"Vllay with a Past, Giiy with a Future"
To: City Council
Through: Rick Koch, City Manager
From: Larry Floyd, Building Official
Date: December 11, 2012
210 Fidalgo Avenue, Kenai, Alaska 99611 -7794 �
Telephone: 907- 283 -7535 / Fax: 907 - 283 -3014
www.d.kenai.ak.us 1I I I',
1992
Re: 2009 International Residential Code Adoption
The City of Kenai has historically adopted the latest edition of the International Residential
Code as the standard for the new home construction in the City.
The City is adopting the other International Codes that work in conjunction with the
Residential Code for consistency of enforcement.
I therefore recommend the adoption of the 2009 International Residential Code as
amended to consistently enforce the International Code standards for all construction in
the City.
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