Fire%Resistance%Detailing%for%
Light3frame%Mid3rise%Structures%%
Including)Fire)Wall,)Exterior)Wall)and)Sha6)
Wall)Condi8ons)
Lisa)Podesto,)PE,)MS)
Senior)Technical)Director)
Architectural)and)Engineering)Solu8ons))
Na:onal%Mid3rise%Movement%
College%Park%,%%
MD%
Sea<le,%%
WA%
Normal,%
IL%
Los%Angeles,%
CA%
Atlanta,%
GA%
What%do%you%see?%
Combus:bility%
Fire%Design%
Fire%Resistance%
Flame%Spread%
Classificaiton%
Fire%Resistance%Ra:ngs%
Key Differences in Fire Ratings for Construction Types%%
IIIA
IIIB
VA
Exterior (bearing) wall framing
FRT
FRT
non-FRT
Exterior wall fire rating
2 hr
2 hr
1 hr
Floor assembly fire rating
1 hr
0 hr
1 hr
Fire wall rating
3 hr
3 hr
2 hr
Choosing%Fire%Rated%Assemblies%
Tested)assemblies)(ASTM)E119))per)IBC703.2:)
•  UL)Lis8ngs)
•  Gypsum)Catalog)
•  Proprietary)Manufacturer)Tests))
•  Industry)Documents:)such)as)AWC’s)DCA3)
Alternate)Methods)per)IBC703.3)
•  Prescrip8ve)designs)per)IBC721)
•  Calculated)Fire)Resistance)per)IBC722)
•  Fire[resistance)designs)documented)in)sources)
•  Engineering)analysis)based)on)a)comparison)
•  Fire[resistance)designs)cer8fied)by)an)approved)agency))
Exterior%Walls%
Exterior%Walls%
Lot)Line)
X<10’)
Interior%
Exterior)
Exterior%Walls%3%Asymmetry%
EXTERIOR CEMENT PLASTER, MIN. THICKNESS
3/4" TO FACE OF LATH
1 LAYER 5/8" FIBERGLASS MAT GYPSUM SHEATHING
FRAMING AT 16" O.C.. MIN. 2 X 4
STRUCTURAL WOOD PANEL(S)
WHERE REQUIRED FOR SHEAR
MIN. 3" THICK MINERAL
WOOL BATT INSULATION
2 LAYERS 5/8" TYPE 'X' GYPSUM
BOARD AT INTERIOR CONDITIONS
EXTERIOR CEMENT PLASTER OVER FIBERGLASS MAT GYPSUM
SHEATHING AT EXTERIOR CONDITIONS
2"HOUR RATING PER UL DESIGN NO. U371
2"HOUR EXTERIOR WALL
Exterior%Walls%–%Addi:on%%WSP%
ESR32586%
%
%
Exterior%Walls%–%Primary%Frame%Protec:on%%
Exterior%Walls%–%Intersec:ng%Floors%
Legend%
Floor%sheathing%
Untreated%
FRT%sheathing%
FRT%Wood%
[MAP)–)highlight)
everywhere])
Exterior%Walls%
Exterior%Walls%–%Intersec:ng%Floors%
Legend%
Floor%sheathing%
FRT%sheathing%
Untreated%
FRT%Wood%
P
C
• 
Rim%board%
Joist%hanger%
[MAP)–)highlight)
Southern)CA])
Fire%Resistance%of%Exposed%Members%
Exterior%Walls%–%Intersec:ng%Floors%
FRT%
sheathing%
P
C
ra
• 
• 
P
C
• 
FRT%Floor%
sheathing%
Deep)I[joist)or)
BoAom)Chord)
Truss)
Rim%
board%
Joist%hanger%
[MAP)–)highlight)
Southeast])
Exterior%Walls%–%Intersec:ng%Floors%
FRT%Floor%
sheathing%
FRT%sheathing%
Joist%hanger%
[MAP)–)highlight))WA,)
OR,)CA,)north)central,)
southeast])
Exterior%Walls%–%Intersec:ng%Floors%
Floor%sheathing%
(may%be%FRT)%
P
C
• 
• 
FRT%sheathing%
FRT%blocking%
Joist%hanger%
[MAP)–)highlight))WA,)
OR,)CA,])
Exterior%Walls%–%Intersec:ng%Floors%
2x%blocking%
Floor%sheathing%
(may%be%FRT)%
P
C
• 
• 
FRT%sheathing%
Top%flange%
Joist%hanger%
FRT%blocking%
[MAP)–)highlight))WA,)
OR,)CA,])
Exterior%Walls%–%Intersec:ng%Floors%
Poi
Con
•  1
c
•  2
2x%blocking%
Floor%sheathing%
(may%be%FRT)%
FRT%sheathing%
Top%flange%
Joist%hanger%
FRT%blocking%
[MAP)–)highlight))WA,)
OR])
Exterior%Walls%–%Intersec:ng%Floors%
Floor%sheathing%
(may%be%FRT)%
P
C
• 
)
FRT%sheathing%
Top%flange%Joist%
hanger%approved%to% [MAP)–)highlight))WA,)
span%2%layers%GWB% OR])
Over%Gypsum%Hangers%
Exterior%Walls%–%Intersec:ng%Floors%
Poi
Con
•  F
1
•  2
FRT%Floor%
sheathing%
FRT%sheathing%
FRT%ledger%
FRT%blocking%
Top%flange%
Joist%hanger%
[MAP)–)highlight))
southeast])
Type%III%Construc:on%Detail%Example%
(2)%2x%flat%blocking%
Poi
Con
•  F
1
•  1
c
Floor%sheathing%
FRT%sheathing%
Rim%board%
FRT%blocking%
[MAP)–)highlight))north)
Central])
Exterior%Walls%
Fire%Walls%
Fire%Walls%
Op8ons)per)NFPA)221:)
)
Fire%Wall%3%Assembly%%
WOOD STRUCTURAL PANELS WHERE REQUIRED FOR SHEAR
1 5/8" METAL STUDS AT 24" O.C. MAX.
BATT INSULATION (OPTIONAL)
INTERIOR OR EXTERIOR FINISH AS REQUIRED
3 LAYERS 1/2" TYPE 'X' GYP. BD. ON EACH SIDE OF METAL STUDS
3 HOURS PER UL DESIGN NO. U435
3"HOUR FIRE WALL ASSEMBLY
0' " 1"
AIR GAP
0' " 1"
AIR GAP
WOOD STUD WALLS ON EITHER
SIDE OF FIRE WALL
•  (2))1”)Type)X)Gypsum)
•  2”)H)Studs)
•  2”)mineral)fiber)insula8on)
Fire%wall%–%Diaphragm%Con:nuity%
3"HR. ASSEMBLY: 1 5/8" METAL
STUDS WITH 3 LAYERS 1/2" TYPE 'X'
GYP. BD. EACH SIDE
CONTINUOUS STRUCTURAL WOOD
PANELS " USE FIRE"TREATED PANELS
THROUGH WALL CAVITY¹
RIM JOIST WITH SOLID BLOCKING
RESILIENT CHANNELS
3"HOUR FIRE CAULKING
1" AIR GAP
2 X 4 STUD WALL EACH SIDE, WITH
STRUCTURAL WOOD PANELS AS
REQUIRED FOR SHEAR AND 1 LAYER
5/8" TYPE 'X' GYP. BD.
¹CONSULT LOCAL JURISDICTION HAVING AUTHORITY FOR ACCEPTANCE OF FIRE"TREATED WOOD
PANELS RUNNING THROUGH 3"HOUR ASSEMBLY IN THIS APPLICATION.
3"HOUR FIRE WALL AT FLOOR/CEILING
I"JOIST FRAMING WITH WOOD PANEL DIAPHRAGM RUNNING THROUGH FIRE WALL
[MAP)–)highlight))WA,)
OR,)CA])
Sha[%Walls%
Sha[%Walls%
CMU%wall%
1%hr.%wall%fire%
rated%assembly%
Above%and%below%
CO
WA
1-H
AS
T / SUBFL
1-H
FL
Concrete%Masonry%
Sha[%Walls%
1%hr.%wall%fire%
rated%assembly%
Above%and%below%
Gypsum%liner%
panels%
UL%U336%
[MAP)–)highlight))TX,)
CA,)PNW,)SE))
Sha[%Walls%
2%layers%5/8”%thk.%
Type%“X”%GWB%
each%side%for%2%hr.%
ra:ng%
Concrete%topping%
Floor%joists%
Rim%joist%
WSP%sht’g%%
as%required%
2x6%studs%
Dbl.%row%of%solid%
blocking%to%
con:nue%fire%
ra:ng%
Wood)Design)Focus:)Volume)22,)Issue)3)by)Smith)
Elevator%Sha[%Wall%
2%layers%5/8”%thk.%Type%
“X”%GWB%each%side%for%%
2%hr.%ra:ng%
Nailer%plate%
Concrete%topping%
Floor%joists%
Elevator%guide%rails%%
and%support%bracket%%
with%slo<ed%holes%
Rim%joist%
Galvanized%metal%
spacer%
Double%stud%wall%
Dbl.%row%of%solid%
blocking%to%con:nue%
fire%ra:ng%
WSP%sht’g%%
as%required%
Wood)Design)Focus:)Volume)22,)Issue)3)by)Smith)
Interior%Exit%Stairway%Enclosures%
What%do%you%see?%
Performance%Based%Codes%

Shareholding Pattern 31-03-2014

Coversheet

Caterpillar Electronic Technician 2012C v1.0 Product Status Report

Brad nailer ESSVE BN 16/64