Installation Instructions

For latest information and updates:
Technical Service Hotline [phone] or www.gpgypsum.com
CAUTION: For product fi re, safety and use information,
go to buildgp.com/safetyinfo.
DensArmor Plus
®
Interior Panels
10
Fire- and Sound-Rated Assemblies
DensArmor Plus
®
Fireguard
®
and DensArmor Plus
®
Fireguard C
®
interior panels are UL and ULC classified as Type DAP and Type DAPC,
respectively, and included in numerous assembly designs investigated by UL and ULC for hourly fire resistance ratings.
In addition, DensArmor Plus Fireguard and DensArmor Plus Fireguard C interior panels are classified as “Type X” in accordance with ASTM C
1658 and may be used in generic fire-rated assemblies where Type X gypsum board (as defined in ASTM C 1658) is required. Generic systems
in the GA-600 Fire Resistance Design Manual are applicable to the products of any manufacturer, including Georgia-Pacific Gypsum, provided
they meet certain standards set forth in such manual, such as Type X gypsum board per applicable ASTM standard with specified thickness and
size described in the design. “Type X” as used in this technical guide designates gypsum board manufactured and tested in accordance with
specific ASTM standards for increased fire resistance beyond regular gypsum board. Please consult the ASTM standard for the specific product
(for example, ASTM C 1658 for glass mat gypsum panels) for further information and significance of use.
Proprietary GA-600 Designs: Assemblies listed as proprietary in the GA-600 Fire Resistance Design Manual only list one product per
manufacturer and may not include all products referenced in the illustrations below. Please consult the specified UL, ULC, cUL or other fire
listing or test for a complete list of approved products.
The following design assemblies are for illustrative purposes only. Consult the appropriate fire resistance directory or test
report for complete assembly information. For additional fire safety information concerning DensAmor Plus panels, visit
www.buildgp.com/safetyinfo.
30-34 STC Sound Trans.
Test Reference: OR 64-8
Partition Thickness: 4-7/8” (124 mm)
Weight per Sq. Ft.: 7.0 psf (34 Kg/m
2
)
5/8” (15.9 mm) DensArmor Plus
®
Fireguard
®
or Fireguard C
®
panel applied
vertically or horizontally (W301
1
vertical only) to each side of 2 x 4 wood studs
16” (406.4 mm) o.c. with 1-7/8” (48 mm) 6d coated nails spaced 7” (178 mm)
o.c. Joints staggered. (UL U309, studs 24” (610 mm) o.c.)
1-Hour Fire Rating
Design Reference: UL U305, ULC W301
1
,
cUL U305, GA WP 3605
40-44 STC Sound Trans.
Test Reference: NGC-2363
Partition Thickness: 6-1/8” (156 mm)
Weight per Sq. Ft.: 12.0 psf (59 Kg/m
2
)
Base Layer: 5/8” (15.9 mm) DensArmor Plus Fireguard or Fireguard C panel
applied vertically or horizontally to each side of 2 x 4 wood studs 16”
(406 mm) o.c. with 1-7/8” (48 mm) 6d coated nails 6” (152 mm) o.c.
Face Layer: 5/8” (15.9 mm) DensArmor Plus Fireguard panel applied vertically
or horizontally to studs over base layer with 2-3/8” (60 mm) 8d coated nails
8” (203 mm) o.c. Stagger joints 16” (406 mm) o.c. each layer and side.
2-Hour Fire Rating
Design Reference: UL U301, cUL U301
1-Hour Fire Rating
Design Reference: UL U465, ULC W415
1
,
cUL U465, GA WP 1081
48 STC Sound Trans.
Test Reference: RAL TL99-103
Partition Thickness: 4-7/8” (124 mm)
Weight per Sq. Ft.: 6.0 psf (29 Kg/m
2
)
5/8” (15.9 mm) DensArmor Plus Fireguard or Fireguard C panel applied vertically
(UL U465, ULC W415, GA WP 1081) or horizontally (UL U465) to each side of
3-5/8” (92 mm) steel studs 24” (610 mm) o.c. with 1” (25 mm) Type S drywall
screws 8” (203 mm) o.c. at edges and 12” (304.8 mm) o.c. at intermediate studs.
Sound Tested with 2-1/2” (64 mm) fi berglass insulation, friction fi t in cavity
Important Notes:
1. DensArmor Plus Fireguard: For certain proprietary ULC assemblies identifi ed above, DensArmor Plus
®
Fireguard C
®
(Type DAPC) interior
panels have not been approved by ULC for listing in such assemblies as of the date of this publication in lieu of DensArmor Plus
®
Fireguard
®
(Type DAP) interior panels. Please check with ULC for current information.