Installation Guide

PermaBase brand UltraBacker
®
Cement Board
Smoother, Stronger, More Stable
When You Want The Best Rigid
1/4-Inch Underlayment That Buys
You More Open Time:
PermaBase brand UltraBacker
®
Cement Board
UltraBacker
®
features a smooth mesh and mat surface. The
1/4-inch thickness eliminates the need to modify adjacent
thresholds when abutting it to carpet, hardwood and
other common flooring materials.
For installation instructions and accessories, see page 14.
SIZES AND PACKAGING
Size: Thickness, Width And Length # Of Pcs Per Unit
1/4" x 36" x 5' (7.9 mm x 914 mm x 1524 mm) 60
Resists Moisture Better
Than Any Other Cement Board

Features the lowest water-absorption rating of
<4%
(ASTM C 473) – offering better installation

Stays intact when exposed to water: will not rot,
disintegrate or swell – built for the long run

Helps inhibit mold growth with the highest possible
score on mold tests (ASTM D 3273 and ASTM G 21)
Stays Strong And Lasts Long

Resists impact and remains dimensionally stable
– extending the life of your project

Holds up to the toughest conditions

30% stronger and four times more rigid than
competitive 1/4-inch cement board
Installs Fast And Easy

Can be applied over new or existing countertops
or as a flooring underlayment – pre-manufactured
panels save you time

Reduces jobsite waste – easier, cleaner cut

Patented EdgeTech
®
Technology allows for a closer
edge fastening and reduces damage from handling
Offers Best In Class Warranty

Lifetime Limited Warranty: Interior applications
12