FAQ

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CRI 105 - STANDARD For INSTALLATION of RESIDENTIAL CARPET Copyright © 2015 by The Carpet and Rug Institute, Inc.
General Requirements
recommendations for patch thickness. Large patched areas must be primed (Refer to
General Requirements > Substrate Preparation > Primers section of this document).
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 General Requirements > Substrate Preparation > Primers
section of this document).
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.