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ADD 5/8" G.W.B. TO ALL INTERIOR GARAGE WALLS
ADD 5/8" G.W.B TO INTERIOR LAUNDRY WALLS
ADD RAGG WOOL TO ALL INTERIOR SPACES BETWEEN UNITS.
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REPAIR ALUMINUM FASCIA 1) 1 The fire code as adopted by the state does not pertain to the interior of residential O
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REPLACE CDX PLYWOOD EXTERIOR GARAGE
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HOME HEATING & AIR TO REPAIR MISSING DUCTS, REPAIR DUCTWORK,REPAIR GASLINES.RE-VENT
GAS FURNACE INTO LEGAL CHIMNEY,
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r SINCE THE BUILDING AT 304 BLUE LAKES,TWIN FALLS,IDANO APPEARS TO HAVE HAD INTERIOR
ALTERATIONS WITHOUT PRIOR APPROVAL OF THE TWIN FALLS BUILDING DEPARTMENT,THE BUILDING WILL
coo BE BROUGHT INTO COMPLIANCE WITH THE INTERNATIONAL BUILDING CODE(IBC)AS A MIXED USE,
.zm, SEPARATED OCCUNCY BUILDING PURSUANT TO IBC 508,WITH DWELLING SEPARATION PURSUANT TO IBC OCCUPANCY SEPARATION---2-HOUR FIRE BARRIER
420 d 7091N ADDITION TO MEETING IBC 3404 FOR AN INTERIOR ALTERATION ONLY WITH NO CHANGE TO -
y BUILDING STRUCTURE OR OCCUPANCY GROUP. GYPSUM WALLBOARD(GWB),WOOD STUDS
ne Gypsum Association(GA)File No.WP 4135,Generic 2-hour assembly
a BUILDING CODE ANALYSIS
z Base Layer s%"Type X GWB or gypsum veneer base applied at right angles to each side of2 x 4
USE AND OCCUPANCY-IBC CHAPTER$ PENETRATIONS SHALL COMPLY WITH IBC 713.THROUGH PENETRATIONS SHALL COMPLY WITH IBC 713.3.1.2 AND studs Layer.with a coated nails,1 u long,0.085mveneer base
shank,d at right or 24 type c screws',24"o.c.
ne MEMBRANE PENETRATIONS SHALL COMPLY WITH IBC 713.3.2 Face Layer s/s"Type X GWB or gypsum veneerbase applied of right angles M each side with 8d
3 coated nails,2%"long,0.100"shank,Y4"heads,or 2%"type W screws`,8"o.c.
y THE EXISTING COMMERCIAL SPACE SHALL BE CLASSIFIED AS A GROUP M OCCUPANCY PER IBC 309.1 713.3 Fire-resistance-rated walls.Penetrations into or through...fire partitions shall comply with
w Joints staggered 24"o.c.each layer each side.load bearing.
re a 309.1 Mercantile Group M.Mercantile Group M occupancy includes,among others,the use of a building or structure Sections 713.3.1 through 713.3.3.
w or a portion thereof,for the display and sale of merchandise and involves stocks ofgoods,wares or merchandise 'See GA 600 Explanatory Notes,No.4.
w incidental to such purposes and accessible tothe public. 713.1.1 Ducts and air transf openings.Penetrations of fire-resistance-rated walls by ducts that are not protected with dampers shall
F comply with Sections 713.2 through 713.3.3. y
THE RESIDENTIAL SPACE SHALL BE CLASSIFIED AS A GROUP R,DIVISION 3 OCCUPANCY PER IBC 310.1 -E
m 713.3.1.2 Through-penetration firestop system.Through penetrations shall be protected by an approved penetration firesmp system 2-LAYERS TYPE X-INSTALL 2x4 VERT BLOCK FLAT TO .. ...
s installed as tested in accordance with ASTM E 814 or UL 1479,with a minimum positive pressure differential of 0.01 inch(2.49 Pa) TO EXISTG CONSTRUCTION, WE FILLER,TYP _
310.1 Residential Group R.Residential Group R includes,among others,the use of a building or structure,or a _4 ,
3 portion thereof,far sleeping purposes when not classified as an Institutional Group I or when not regulated the of water and shall have an F rating of not less than the required fire-resistance rating of the wall penetrated. MATCH WALL ASSEMBLY
Po cePNB Pure P Bal by 2-LAYERS TYPE X-INSTALL
3 International Residential Code in accordance with Section 101.2. TO EXISTG CONSTRUCTION,
a FILL WEB OF"1"JOIST EA MATCH WALL ASSEMBLY
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R-3 Residential occupancies where the occupants we primarily permanent in nature and not classified as SIDE w/GWB WEB FILLER
713.3.2 Membrane penetrations.Membrane penetrations shall comply with Section 713.3.1.Where walls or partitions are requited to have EXISTING BEARING WALL
Group R-1,R-2,R-4 or I,including:Buildings that do not contain more than two dwelling units. a fire-resistance rating,recessed fixtures shall be installed such that the required fire-resistance will not be reduced. CZ
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w Exceptions:
s OCCUPANCY SEPARATION-IBC SECTION 508 Memb one penetrations ofmax mum 2-hou f-resistance-rated walls and postitions by steel electrical boxes that do not exceed 16
square inches(0.0103 m2)in area,provided the aggregate area of the openings through the membrane does not exceed 100 square inches EXISTG RESIDENTIAL SPACE
PATCH CEILING ACCESS w/
(0.0645 m2)in any 100 square feet(9.29 m2)of wall area.The annular space between the wall membrane and the box shall not exceed 1/8 -
y THE BUILDING WILL BE CONFIGURED AS A MIXED USE,SEPARATED OCCUPANCY BUILDING PER IBC inch(3,1 ram).Such boxes on opposite sides of the wall or partition shall be separated by one of the following: %TYPE X GWB
508.4 1.1.By a horizontal distance afoot less than 24 inches(610 ram)where the wall or partition is constructed with individual
o noncommucleating stud cavities; _
508.4 Separated occupancies.Buildings or portions of buildings that comply with the provisions of this 1.2.By a horizontal distance ofew less than the depth of the wall cavity where the wall cavity is filled with cellulose loose-fill, 2x4 PLATE col"o..) EA BAY
section shall be considered ass separated ties. (3 NAILS @ 24"o.c.)
eP occupancies.
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or slag mineral wool insulation; _
Ao 1.3.By solid fireblocking in accordance with Section 717.2.1; _.
ne 508.4.4 Separation.Individual occupancies shall be separated from adjacent occupancies in accordance with IA By protecting both outlet boxes with listed putty pads;or 2x4 STUDS @ 24"o.c.
war Table 508.4. 1.5.By other listed materials and methods. _
2.Membrane t ti b listed electrical boxes of an material,provided such boxes have been tested f use in fire-resistance-rated BASE LAY s/e TYPE X GINS,ATTACH
re pane in ors y is y p BASE LAYER w/2'TYPE W SCREWS @
m TABLE 508.4 SPECIFIES A 2-HOUR SEPARATION BETWEEN GROUP R AND GROUP M OCCUAPNCIES assemblies and are installed in accordance with the ldoceinstructions included in the listing.The sides o space between the wall membrane and 24"o.c.,ATTACH FACE LAYER w/2Yt
N the box shall not exceed 1/8 inch(3.1 ram)unless listed otherwise.Such bones on opposite sides of the wall or partition shall be separated TYPE W SCREWS @ B"o.c.-STAGGER Ye TYPE X GWB FACE _ KAM
� by one of the following: TOWARD
JOINTS MIN 24" TOWARDD EXISTG CONSTRUCTION, -
FIRE BARRIERS-IBC SECTION 707 2.1.By the horizontal distance specified in the listing ofthe electrical boxes; ATTACH BASE LAYER W 2"TYPE W
N 2.2.By solid fireblocking in accordance with Section 717.2.1; SCREWS @ 24'o.c.,ATTACH FACE
2.3.By protecting both boxes with listed putty pads;or LAYER w12Yx"TYPE W SCREWS @ 8"o.c. MMA
707.3.8 Separated occupancies.Where the provisions of Section 508.4 we applicable,the fire barrier separating mixed -STAGGER JOINTS MIN 24'
s 2.4.By other listed materials and methods. PAPER SIDE ..
occu ancies shall have a fire-resistance ratio of not less than that indicated in Table 508.4 based an the occupancies being P y y size or type,which have been listed as part ofa wall opening protective material
sc� P g �° g 3.Membrane penetrations b electrical boxes ofan
separated.
system for use in fire-resistance-rated assemblies and are installed in accordance with the instructions included in the listing. PAPER SIDE
4.Membrane penetrations by boxes other than electrical boxes,provided such penetrating items and the annular space between the wall
c THE SEPARATION WALL SHALL MEET THE CONTINUITY REQUIREMNTS OF IBC 707.5.FOR PURPOSED OF THIS membrane and the box,are protected by an approved membrane penetration firestop system installed as tested in accordance with ASTM E
SECTION,A WALL CONSTRUCTED ON A SLAB ON GRADE SHALL BE CONSIDERED AS CONTINUOUS FROM THE 814 or UL 1479,with a minimum positive pressure differential of 0.01 inch(2.49 Pa)of water,and shall have an F and T mting of not less "
13 FOUNDATION. than the required fire-resistance rating of the wall penetrated and be installed in accordance with their listing.
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2x4 PT PLATE w/16d SHOT PIN @ EA
a 707.5 Continuity.Fire barriers shall extend from the top ofthe foundation or floor/ceiling assembly below to the BAY(24"o.c.)
z underside of the Boor or roof sheathing slab or deck above and shall be securely attached tbereto.Such fire barriers
re shall be continuous through concealed spaces,such as the space above a suspended ceiling. INTERIOR ALTERATION
OPENINGS IN THE SEPARATION WALL SHALL BE PROTECTED WITH LISTED AND RATED 90 MINUTE DOORS PER
u IBC 3404-INTERIOR ALTERATION ONLY.NO CHANGE TO BUILDING STRUCTURE OR OCCUPANCY GROUP. OEM
w IBC 715,TABLE 715.4,SHALL BE TESTED IN ACCORDANCE WITH NFPA 252 OR UL 10C AND SHALL MEET THE
a REQUIREMENTS OF IBC 715 AND BE INSTALLED PER IBC 715 AND NFPA 60.
3404.1 General.Except as provided by Section 3401.4 or this section,alterations to any building or structure shall comply with
w the requirements of the code for new,construction.Alterations shall be such that the existing building or structure is no less
0 707.6 Openings.Openings in a fire barrier shall be protected in accordance with Section 715.Openings shall be limited to a complying with the provisions of this code than the existing building or structure was prior to the alteration.
F maximum aggregate width of 25 percent of the length of the wall,and the maximum area of any single opening shall not
w exceed 156 square feet(15 m2).
a
re THROUGH PENETRATIONS SHALL MEET THE REQUIREMENTS OF IBC 713.3.1.2 340L4.1 Existing materials.Materials already in use in a building incompliance with requirements or approvals in effect at the s
a time oftheir erection or installation shall be permitted to remain in use unless determined by the building official to be DWELLING SEPARATION---1-HOUR FIRE PARTITION
w dangerous to life,health or safety.Where such conditions are determined to be dangerous to life,health or safety,they shall be '
> 713.3 Fire-resistance-rated walls.Penetrations into or through...fire barriers...shall comply with Sections 713.3.1 mitigated or made safe.' s!"�:�
GYPSUM WALLBOARD(GWB),WOOD STUDS
through 713.3.3.
J Gypsum Association(GA)File No.WP 3514,Generic 1-houressembly
X
w 713.3.1.2 Through-penetration frrestop system.Through penetrations shall be protected by an approved ACCESSIBILITY IBC 3411-
penetration frestop system installed as tested in accordance with ASTM E 814 or UL 1479,with a minimum One Layer%"Type X GWB orgypsum veneerbase applied parallel or at right angles to each side -
= positive pressure differential of 0.01 inch(2.49 Pa)of water and shall have an F rating afoot less than the NEW OR ALTERED ELEMENTS SHALL COMPLY WITH IBC CHAPTER 11.ALTERATIONS TO THE COMMERCIAL SPA CE of 2 x 4 studs 16"o.c.with 1%"Type W drywall screws 12"ac.
required fire-resistance rating of the wall penetrated. REQUIRE THAT THE ACCESSIBLE ROUTE TO THE SPACE COMPLY WITH THE PROFISSIONS OF CHAPTER 11 FOR NEW
CONSTRUCTION EXCEPT THAT THE COST OF PROVIDING THE ACCESSIBLE ROUTE SHALL NOT BE REQUIRED TO Joints staggered 16"o.c.each side.(Load Bearing)
a - EXCEED 20%OF THE REMODEL BUDGET.FOR PURPOSES OF DETERMING THE REQUIRED EXPENSE SPENT ON
DWELLING SEPARATION-IBC SECTION 420&IBC 709. IMPROVING THE ACCESSIBLE ROUTE,THE BUDGET SHALL NOT INCLUDE THE COST OF WINDOWS,DOORS,HARDWARE, zoom
ELECTRICAL OUTLETS,SIGNS OR ELECTRICAL OR MECHANICAL SYSTEMS.
w THE TWO DWELLING UNITS SHALL BE SEPARATED BY 1-HOUR FIRE PARTITIONS PER IBC 420 AND E
s IBC 709.
} 3411.6 Alterations.A building facility or element that is altered shall comply with the applicable provisions in Chapter 11 ofthis
a 420.1 General.Occupancies in Groups I-1,R-1,R-2 and R-3 shall comply with the provisions of this section and other code and ICC Al 17.1,unless technically infeasible.Where compliance with this section is technically infeasible,the alteration O
m applicable ofthis code. shall provide access to the maximum extent technically feasible.
� provisions
MWO
ne Exceptions: - A"', imm =z
y420.2 Separation walls.Walls separating dwelling units in the same building,walls separating sleeping units in the "-' '�%' F x
same building and walls separating dwelling or sleeping units from other occupancies contiguous to them in the
_ r same building shall be constructed as fire partitions in accordance with Section 709. 1.The altered element or space is not required to be on an accessible route,unless required by Section 3411.7.
w 2.Accessible means of egress required by Chapter 10 are not required to be provided in existing buildings and facilities. ai
3.The alteration to Type A individually owned dwelling units within a Group R-2 occupancy shall meet the provision for a Type B n%
z SECTION 709 FIRE PARTITIONS dwelling unit and shall comply with the applicable provisions in Chapter 11 and ICC At 17.1.
a: _ XO of
709.1 General.The following wall assemblies shall comply with this section. s m ao
z r
3 1.Walls separating dwelling units in the same building as required by Section 420.2 d ca
o 3411.7 Alterations affecting an area containing a primary function.Where an alteration affects the accessibility to,
709.3 Fire-resistance rating.Fire partitions shall have afire-resistance rating of not less than 1 hour. or contains an area of primary function,the route to the primary function area shall be accessible.The accessible -
N route m the fimetion area shall include toilet facilities or chi fountains serving the azea of
primary
Continuity.Five partitions shall extend fimn the top of the foundation or floor/ceiling assembly below to the underside of the floor or primary 8 e PrirriarY _-
mof sheathing,slab or deck above or to the fire-resistance-rated floor/ceiling or roof/ceiling assembly above,and shall be secmely attached f c-tion
thereto.If the partitions are not continuous to the sheathing,deck or slab,and where constructed of combustible construction,the space
between the ceiling and the sheathing,deck or slab above shall be frreblocked or draflstopped in accordance with Sections 717.2 and 717.3 at Exceptions:
the partition line.The supporting construction shall be protected to afford the required fire-resistance rating of the wall supported,except for sari'eY DK
walls separating tenant spaces in covered mall buildings,walls separating dwelling units,walls separating sleeping units and corridor walls,in ntrE
'a buildings of Type IIB,IIIB and VB construction. 1.The costs ofproviding the accessible route are not required to exceed 20 percent of the costs of the alterations April 18, 2012
o affecting the area of primary function at.toe xa
12-014
2.This provision does not apply to alterations limited solely to windows,hardware,operating controls,electrical
outlets and signs.
3.This provision does not apply to alterations limited solely to mechanical systems,electrical systems,installation �Sg\OHAL NC
or allocation of Fire protection systems and abatement of hazardous materials. Q \ y
4.This provision does not apply to alterations undertaken for the primary purpose of increasing the accessibility of
an existing building facility or element
F.1 l"0E OF\OPq'�4ri
ass KEIEA\'
BUILDING CODE COMPLIANCE ANALYSIS S1 .0
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