Installation Instructions

7.3 Ventilation

During installation, maintain air circulation by operating the HVAC system.

NOTE: For acceptable indoor air quality, fresh air ventilation in

residential spaces is recommended to conform to current guidelines

specified in ASHRAE Standard 62 published by the American Society of

Heating, Refrigerating and Air Conditioning Engineers

(www.ashrae.org).

8.0 Substrate Preparation

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. Substrates are required to

be structurally sound and free of foreign substances that will compromise the carpet or

its installation. Patching compounds are required to be suitable for application. Select

polymer-fortified patching compounds according to the carpet manufacturer’s

instructions. (Refer to current version of ASTM E1155).

NOTE: Patched areas may be porous and highly alkaline, which will

prevent adequate adhesive bond. For best results, prime patched areas.

Consult patch manufacturer for primer recommendations and

compatibility with adhesives.

8.1 Concrete

Concrete must be cured, clean, dried and tested in accordance to Section 6.0. If

the carpet is to be installed using an adhesive, the concrete should be free of dirt,

grease, oil, curing or parting agents, and other contaminants, including sealers,

that may interfere with the bonding of adhesive.

NOTE: It is not recommended to chemically treat (abate) substrates.

These chemicals are difficult to completely remove and will adversely

affect new adhesive and carpet. Contact your manufacturer for specific

information.

Whenever a powdery or porous surface is encountered, a primer/sealer compatible

with the adhesive should be used to provide a suitable surface for the glue-down

installation. Patching of cracks and depressions shall be made with an appropriate

and compatible latex or polymer fortified patching compound. Do not exceed

manufacturer’s recommendations for patch thickness. Large patched areas must

be primed (Refer to Section 8.9).