Use and Care Guide

8
Can I use DensShield
®
Tile Backer in fire-rated wall assemblies?
Yes.
5
⁄89 (15.9 mm) DensShield
®
Fireguard
®
Tile Backer is manufactured to meet Type X requirements
(per ASTM C1178) and can be substituted in any generic assemblies using a
5
⁄89 (15.9 mm) Type X gypsum
board. This permits the use of numerous 1-hour and 2-hour assemblies for both wood and metal frame
construction. Transition to regular
5
⁄89 (15.9 mm) Type X board is also minimized.
9
Do DensShield panels meet 2012 IRC and IBC codes for wet areas?
Yes. DensShield Tile Backer is manufactured to ASTM C1178 which is one of three standards
acceptable as a backer board in tub and shower areas.
FaStENINg
10
What is the correct wall and ceiling framing requirements
for DensShield Tile Backer?
Maximum wall framing spacing for
1
⁄29 (12.7 mm) DensShield Tile
Backer panels is 169 (406 mm) o.c. without blocking or 249 (610 mm)
o.c. with blocking. Maximum wall framing spacing with
5
⁄89 (15.9 mm)
DensShield Tile Backer is 249 (610 mm) o.c. with or without blocking.
For ceilings, framing should be spaced no greater than 129 (305 mm)
o.c. for
1
⁄29 (12.7 mm) DensShield Tile Backer or 169 (406 mm) o.c. for
5
⁄89 (15.9 mm) thickness. Panels should be applied perpendicular to
framing for ceiling applications.
11
How is DensShield Tile Backer fastened in place?
No special or unique fasteners are required to fasten DensShield Tile Backer panels in place. For wood
studs: galvanized roofing nails, rust-resistant drywall screws or bugle head deck screws. Fasteners should
be long enough to penetrate at least
3
⁄49 (19 mm) into the wood framing members. For metal framing: a
variety of rust-resistant screws can be used.
12
What is the fastener spacing?
For walls and ceilings in either wood or metal framing, fasteners are to be spaced no more than 69 (152 mm)
o.c. along framing members. For floor applications, fasteners should be spaced no more than 89 (203 mm)
o.c. in both directions. Larger crown corrosive-resistant chisel point staples can be used on
1
⁄49 (6.4 mm)
products and spaced every 29 (51 mm) on edge and 49 (102 mm) in field.
13
Should the fasteners be countersunk?
No. Fasteners should be flush with the coated surface and are not to be countersunk.
14
How do you repair damage to the surface coating of DensShield Tile Backer panels or
areas where fasteners are countersunk?
Minor damage to the surface can easily be repaired by covering the indented or blemished area with
standard tile setting material.
tapINg aND BEDDINg
15
Should I tape the joints? If so, what kind of tape should I use with DensShield Tile Backer?
Yes. Apply a self adhesive 29 (51 mm) wide fiberglass mesh tape over all joints and corners. This is the same
type of tape used for taping cement board joints. Then, embed the tape with the same material used to set
tiles. Do not use all-purpose or setting type drywall compounds. Pull tile setting materials tightly over the
joint to reduce crown in the joint area. Allow tile setting material to dry prior to setting the tiles.
DENSSHIELD Questions & Answers 7
DensShield
®
Tile Backer
DensShield Tile Backer
Tile Mastic or Thin Set
Tiles
29 x49 (51 mm x 102 mm)
Framing 169 (406 mm) o.c.
Fiberglass Mesh Tape
Flexible Sealant
Flexible Sealant
Bathtub
Bathtubs, Walls and Ceilings