HomeMy WebLinkAboutFire Resistance Wall Board Spec7 a368 GA-6OO-2021 FIRE RESISTANCE AND SOUND CONTROL DESIGN MANUAL
The descriptions in this manual are summaries. For complete assembly information, review the listed design.
@2021 by the Gypsum Association www.gypsum.org
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COLUMNS, NONCOMBUSTIBLE
GYPSUM WALLBOARD, STEEL STUDS
Fire Design:
Base layer 1/2" lype X gypsum wallboard applied to 1-5/8", 18 mil
steel dtuds tocai6O at edch corner of W4 x '1 3 column with 1"Type S
screws 24" o.c. Second layer 1l2" type X gypsum wallboard
applied to studs with 1-314" Type S screws 12" o.c. Facg layel
1'12" type X gypsum wallboarij applied to studs wilh 2" Tyqe S
screws 12" o.c. Metal cornerbead applied to all corners with 1"
screws 12" o.c.in each flange. Joint compound 1/1 6"thick applied
over cornerbead.
Horizontal joints stagge red 24" between layers.
GA FILE NO.
cM 1404
GA FILE NO.
cM 1450
GENERIC
GENERIC
FireTest
FireTest:
1 HOUR
FIRE
1t{ouR
FIRE
GYPSUM WALLBOARD, STEEL COLUMN COVER
Fire Design:
Base layer 112" type X gypsum wallboard applied around TS4 x 4 x
0.18&tube ste6l column and held in place with paper masking tape'
Second layer 112" lype X gypsum wallboard applied around column
and held iri place with paper masking tape. Face layer either 24 ga.
galvanized steel column cover consisting of two L-shaped sections
with snap-lock sheet steel joints or 22 ga. galvanized steel column
covers cbnsisting of two L-shaped sections with lap joints fastened
with No.8x112" sheet metal screws 12" o.c.
Horizontal joints siaggered 24" between layers'
Based on UL NC505, 77NK1747,
6-13-77,
UL Design X528
uL NC505-(1 -6), 71 NK2639, 12-23-75,
uL NC505, 77NK1518,
UL Design X526
GYPSUM WA!-LBOARD, STEEL COLUMN COVER
Fire Design:
Base layer 112" type X gypsum wallboard applied around TS4 x 4 x
O.188tube steel column and held in place with paper masking
tape. Second layer eilher 24 ga. galvanized steel column cover
consisting of two L-shaped sections with snap-lock sheet steel
joints or 22 ga. galvanized steel column covers consisting.of two
L-shaped sections with lap joints fastened with No. 8 x 'l12" sheet
metal screws 12" o.c. Face layer 1/2" lype X gypsum wallboard
applied without horizontal joints to column cover with 1"Type S
screws 8" o.c. spaced 1" from vertical edges. Metal cornerbead
applied to all corners with 1"Type S screws 12" o.c. in each flange.FireTest:uL NC505-(1 -6), 71 NK2639, 12-23'7 5'
uL NC505, 77NK1518,
UL Design X526 ;i'tl