Installation Instructions
13 
NOTE: Any concrete floor, even when adequately cured and dry, can 
allow moisture vapor to pass through to its surface. Depending upon 
the type of carpet and method of installation, the moisture emission 
rate greatly influences the long-term success of an installation. The use 
of a properly installed, uncompromised, approved moisture membrane 
is essential in preventing moisture migration into and through a 
concrete slab. (Ref. ASTM F 710) 
8.1.1  Moisture Mitigation 
Concrete that has been treated with a moisture mitigation system will render 
the substrate non-porous. Before installation, a bond test is recommended. If 
the bond test fails, the substrate must be adequately prepared to accept 
adhesive. 
8.2  Wood 
Wood substrates are required to be structurally sound, flat, dry and securely 
anchored. Substrates, such as plywood, hardwood, particleboard, oriented strand 
board, or other materials, are required to be flooring grade (APA approved) and 
installed according to manufacturer specifications. Irregularities, imperfections 
and joints are required to be properly patched and prepared. The use of a primer 
on the substrate will improve bond strength of the patch (refer to Section 8.9). 
8.2.1  Treated Wood 
Wood that is chemically treated to alter properties relating to outdoor exposure 
or flame resistance is not a suitable substrate for direct glue-down applications. 
Floor covering adhesives may be subject to chemical degradation when applied 
to these surfaces. 
8.3  Metal 
It is required that metal floors create a smooth, even plane, and be free of grease, 
oil, soil, and rust. 
8.4  Resilient 
Installing carpet over resilient flooring may be acceptable as long as the resilient 
flooring is securely bonded to the substrate and all waxes, sealers, floor finishes 
and other foreign materials have been removed. It is not recommended to install 
over floating, perimeter bonded or cushion-backed sheet goods. 










