Product Brochure

Surface Preparation
Over Wood Subfloor
For best results, be sure plywood subfloor panels are
gapped 1/8" at seams. If plywood is not gapped, saw cut
joints all the way through the plywood sheets. Keep joints
free of mortar.
1
Subfloor and countertop base should be an exterior
grade plywood with a minimum thickness of 3/4"when
using 1/4" WonderBoard Lite. When using 7/16"
WonderBoard Lite, base should be a minimum of 5/8"
thick. The total wood subfloor including the plywood
and WonderBoard Lite should be a minimum of 1" thick.
2
Ensure the subfloor is structurally sound and clear of
debris.
3
Joists or framing should be spaced no more than 16"
on center.
Over Vinyl Floors
Do not apply directly over cushioned or sponged back
flooring. Subfloor under linoleum must comply with
requirements of wood subfloor and should be well bonded.
1
Clean flooring thoroughly and remove all waxes,
coatings and other contaminants.
Over Existing Plastic Laminated Countertops
1
If thoroughly bonded and rigid, clean to remove all
contaminants then roughen surface with coarse sander.
2
Remove any loose material.
Eligible for up to a
Lifetime Warranty —
No reported failures
in 40 years
Meets All ANSI
Specifications for
Cement Backerboard
For Use in
Wet Areas
For Indoor and
Outdoor Use
Contains
No Wood Fiber
or Gypsum
Floors & Countertops
5/8" subfloor with 16" on
center framing
Installation over existing
vinyl floor
Recommended:
Wear impervious gloves, such as nitrile, safety glasses and
approved dust mask. Please read Safety Data Sheet for details.