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9-10

Fire Protection

Fireblocking
In concealed spaces every 10ft. horiz. and vert. . . . . . .[602.8] {708.2.1}
Horiz./vert. intersections
such as soffits, drop & cove ceilings . . . . . . . . . . . . . . .[602.8] {708.2.1}
Concealed space under stairs at top and bottom of stringers . .[602.8] {708.2.1}
Gaps around ducts and pipes must be sealed w/approved material @ floor & ceiling level penetration . . . . . . . . . . . . . . . . . . . . . . . . . . . [602.8] {708.2.1}
Material may be 2x lumber, 2" gyp. board, compressed glass fiber
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [602.8.1] {708.2.2}

Separation from Garage
Min. 2in. {5/8in.} gyp. board on
garage side of walls/ceilings common to house . . . . . . .[309.2] {302.4Exc.}
Min. 2in. gyp. board on walls supporting ceilings common to house
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [309.2] {302.2}
Exterior walls <3ft. from property line 1hr. construction [302.1]{T-5-A}
Ducts through wall or ceiling common to house min. 26 ga. steel
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [309.1.1] {302.4Exc.}
No duct openings in garage . . . . . . . . . . . . . . . . . . .[309.1.1] {302.4X}
Door to house rated 20-minute or 1sin. solid-core {self-closing}
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [309.1] {302.4X}
Non-combustible floor[with slope to vehicle door or to a drain]. . .[309.3] {312.5}
16sq.in. max. size for electrical boxes penetrating membrane
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [321.3.2X] {709.7X}
No back-to-back electrical boxes(24in. horiz. separation) . .[321.3.2X] {709.7X}
Listed plastic boxes or putty pads OK . . . . . . . . . . .[321.3.2X] {709.7X}
Electrical panel {not} OK in garage side of common wall . . [n/a] {709.7X}

Separation Walls in 2-Family Dwellings
1hr. construction req'd at common walls & floor/ceiling [321.1] {310.1}
Rating of 2hr. OK if automatic sprinkler system present [321.1X] {310.1}

Separation Walls in Multi-Family Dwellings
1hr. construction req'd at common walls & floor/ceiling . . .[n/a] {310.2.1}
All construction (exc. nonbearing interior partitions)
min. 1hr. if >2 stories or >3,000sq.ft. above first floor . . .[n/a] {310.2.2}
1 hr. construction between storage/laundry and dwellings [n/a] {310.2.2}
Common attic spaces sprinklered or

Exterior Wall Covers

General
Ext. wall shall prevent water penetration . . . . . . . . . . .[703.1] {1402.1}
All penetrations flashed watertight . . . . . . . . . . . . . . . .[703.8] {1402.2}

Stucco over Wire Fabric
PAPER:
Paper lap--horiz. 2in.; vert. 6in. . . . . . . . . . . . . . . . . .[703.2] {1402.1}
Min. 15# felt paper over wood studs or sheathing . . . . .[703.2] {2506.4}
All fasteners to be corrosion resistant . . . . . . . . . . . . .[703.4] {2506.2}
EIFS req. weather barrier . . . . . . . . . . . . . . . . . . . . .[703.9.1] {1402.1}

WIRE:
Wire lap min. one mesh or 1in. . . . . . . . . . . . . . . . . . . .[trade] {manu.}
Nail or staple spacing max. 6in. . . . . . . . . . . . . . . . .[703.6.1] {manu.}
Over solid sheathing no fasteners in field (not random) [manu.] {2506.3}
Lap paper/paper & wire/wire (not wire/paper/wire/paper) [703.1] {2506.3}
No holes on the top of horiz. surfaces (copings, etc.) . . .[703.1] {2506.4}
Weep screed 4in. to earth, 2in. to paved areas . . . . .[703.6.2] {2506.5}

Stucco Repairs
No paper/wire paper/wire laps . . . . . . . . . . . . . . . . . .[703.2] {manu.}
Expose 2in.-4in. of old paper; lap new under old except at top
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [703.2] {manu.}

Exterior Insulation Finish Systems (EIFS)
Must follow manu. instructions . . . . . . . . . . . . . . . . . .[703.9] {2508.1}
No decorative trim face nailed through EIFS . . . . . . . . .[703.9] {manu}
Special inspections req'd unless over masonry or weather barrier
...........................................................................T-b11 [703.9.1] {1701.1}