Use and Care Guide

DensShield
®
Tile Backer
For latest information and updates:
Technical Service Hotline [phone] or www.gpgypsum.com
CAUTION: For product fire, safety and use information,
go to gp.com/safetyinfo.
3
Application Fastener Min. Length Spacing
1/2” (13 mm) / 5/8” (16 mm)
Walls & Ceilings Galvanized* roofing nail 1-1/2” (38 mm) 6” (152 mm) o.c. along framing
1-3/4” (45 mm)
Walls & Ceilings Buglehead, rust resistant*, coarse 1-1/4” (32 mm) 6” (152 mm) o.c. along framing
(wood frame) thread, sharp point screw 1-5/8” (41 mm)
Walls & Ceilings Buglehead, fine thread, sharp point 1-1/4” (32 mm) 6” (152 mm) o.c. along framing
(steel frame) rust resistant* drywall screw
Floors Galvanized* roofing nail 1-1/4” (32 mm) 8” (203 mm) o.c.
in both directions
Floors Buglehead, corrosion resistant*, 1-1/4” (32 mm) 8” (203 mm) o.c.
coarse thread, sharp point screw in both directions
Floors (1/4” only) 1/4” (6 mm) crown, corrosive 7/8” (22 mm) 2” (51 mm) o.c. on edges
(6.4 mm only) resistant* chisel point staples
4” (102 mm) o.c. in field
Note: For walls, fasteners should penetrate at least 3/4” (19 mm) into the wood framing.
*Contact fastener manufacturer for proper selection of corrosion resistance.
Physical Properties
Properties 1/4” 6.4 mm) 1/2” (12.7 mm) 5/8” (15.9 mm)
DensShield
®
DensShield
®
DensShield
®
Fireguard
®
Width, standard
3
4’ (1220 mm) 4’ (1220 mm), 4’ (1220 mm)
32” (813 mm)
Length, standard
3
4’ (1220 mm) 5’ (1524 mm) 8’ (2438 mm)
8’ (2438 mm)
Edges square square square
Weight
1
nominal, lbs./sq. ft. (Kg/m
2
) 1.6 (7.8) 2.0 (9.8) 2.5 (12.2)
Bending Radius
4
8’ (2438 mm) 12’ (3658 mm) 16’ (4877 mm)
Fire Classification n/a n/a Type X (ASTM C 1178),
UL and ULC classified*
Permeance
5
, perms (ng/Pa•s•m
2
) <1.5 (86) <1.5 (86) <1.5 (86)
R Value
2
, ft
2
•°F•hr/BTU
(m
2
•K/W) 0.56 (0.098) 0.56 (0.098) 0.67 (0.118)
Standards ASTM C 1178 ASTM C 1178 ASTM C 1178
Code Evaluation DensShield is manufactured to meet ASTM C 1178 and is accepted for use as a tile
backer in tub and shower areas in accordance with current IBC and IRC codes.
NY MEA 65-88-M, ICC-ES product approval
TCNA Recognition ASTM C 627 (Robinson Floor Test); Floors – F146, F151; Radiant Floor – RH135;
Walls – W221, W222, W223, W242, W243, W245; Ceilings – C311, C312, C315;
Tubs – B413, B419; Showers – B420; Countertop – C513
Fastener Guide
* Consult the UL and ULC Directories for approved use.
1
Represents approximate weight for design and shipping purposes.
2
Tested in accordance with ASTM C 518.
3
Specified values per ASTM C 1178.
4
Double fasteners on ends as needed.
5
Tested in accordance with ASTM E96 (drycup method). Perm rating for DensShield only. Tile applications will have lower perm.