FAQ
Table Of Contents
- Table of Contents
- Foreword
- Acknowledgements
- General Requirements
- Broadloom Carpet
- Residential Carpet Tile
- Definition of Terms
- Table I – Tools & Materials
- Table II – Trowel Size Minimum Guidelines
- Table III – Tack Strip
- Table IV – Adhesive Types / Definitions
- Table V – Dew Point
- CRI Members Contact Information
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CRI 105 - STANDARD For INSTALLATION of RESIDENTIAL CARPET Copyright © 2015 by The Carpet and Rug Institute, Inc.
General Requirements
6.3
Testing for Alkalinity
Testing the pH at the surface of a concrete slab must be conducted in accordance with the
current version of ASTM F710, not to exceed manufacturer’s requirements (ASTM F710 -
Standard Practice for Preparing Concrete Floors to Receive Resilient Flooring).
NOTE: Preparing the surface of a concrete slab for pH testing can be problematical. Make
sure the concrete surface is adequately cleaned of adhesives, curing compounds etc. When
pH readings are less than 7, it may be an indication of a residue remaining on the concrete
surface. Also use care not to over clean the surface of the concrete, consequently removing
the (usually) thin layer of carbonation. This can result in pH readings >12.
7.0
Site Conditions
Proper site conditions as outlined in this section are essential for a successful installation
and any deviation often results in an installation failure and may void manufacturers’
warranties.
NOTE: Installing carpet before other trades have completed their work may result in
problems with: overall appearance, visible damage, soiling, adhesive failure, delamination
and dimensional stability. These conditions may not be immediately evident. Refer to
Broadloom Carpet > Direct Glue Down > Post Installation section of this document.
7.1
Substrate Conditions
The owner or general contractor is responsible for providing an acceptable substrate for
the specified installation. Carpet is required to be installed over properly prepared
substrates that are suitable for the specific product and installation method selected. All
cracks, holes and flooring irregularities are required to be repaired to ensure a flat, smooth
substrate, prevent accelerated wear and telegraphing substrate irregularities.
7.2
Ambient Temperature and Humidity Suitable Substrates
The installation is not to begin until the HVAC system is operational and the following
conditions are maintained for at least 48 hours before, during and 72 hours after
completion. The carpet is to be installed when the indoor temperature is 65-95º F (18-35º
C) with a maximum relative humidity of 65%. The substrate surface temperature should
not be less than 65º F (18º C) at time of installation. Do not allow the temperature of