Installation Contract Resilient/Sheet Goods Flashcards
- Concrete Substrates
All concrete substrates should be tested for IRH (Internal Relative Humidity) according to ASTM F 2170. Calcium
Chloride tests may be conducted in addition to IRH and must be performed per the latest edition of ASTM F 1869.
New & Existing Concrete
SUBFLOORS SHOULD MEET THE GUIDELINES OF THE LATEST EDITION OF ACI 302 AND ASTM F 710, “STANDARD PRACTICE FOR
PREPARING CONCRETE FLOORS TO RECEIVE RESILIENT FLOORING” AVAILABLE FROM THE AMERICAN SOCIETY FOR TESTING AND MATERIALS, 100 BARR HARBOR
DRIVE, WEST CONSHOHOCKEN, PA 19428; 610-832-9585; HTTP://WWW.ASTM.ORG.
Concrete Substrates a.
Substrates shall be smooth, structurally sound, permanently dry, clean and free of all foreign material such as dust,
wax, solvents, paint, grease, oils, old adhesive residue, curing and hardening/ curing compounds, sealers and other
foreign material that might prevent adhesive bond.
Concrete Substrates b.
Concrete floors shall be flat and smooth within 1/8” in 6 feet or 3/16” in 10 feet.
Concrete Substrates c.
F-Number System: Overall values of FF 36/FL 20 may be appropriate for resilient floor coverings.
Concrete Substrates d.
ASTM F 2170 IRH (Internal Relative Humidity) are required for the Shaw warranty. Three tests should be
conducted for areas up to 1000 SF. One additional test, for each additional 1000 SF.
Concrete Substrates e.
Moisture vapor emission rate
• 4100 Adh. – may not exceed 87% RH.
• S150 Adh. – may not exceed 90% RH.
Concrete Substrates
Use only Portland based patching and leveling compounds. Do not install Shaw resilient flooring over gypsum based
patching and/or leveling compounds.
Light Weight Concrete
Internal Relative Humidity – Tests should be performed per the latest edition of ASTM F 2170.
Light Weight Concrete a.
a. Three internal relative humidity tests should be conducted for areas up to 1000 SF. One additional test, for each additional 1000 SF
Light Weight Concrete b.
b. Surface must be dry, clean, smooth, free of all dust and structurally sound.
Wood Substrates
a. Wood subfloors must be structurally sound and in compliance with local building codes.
Wood Substrates
b. Wood subfloors should be suspended with a minimum of 18” of well ventilated air space below.
Wood Substrates
c. Crawl spaces must have a vapor barrier covering the ground.
Wood Substrates
d. Wood subfloors directly fastened to concrete, or sleeper construction, are not recommended.
Wood Substrates
e. APA rated Sturd-I-Floor panels are designed as combination subfloor/underlayment, but exposure to construction conditions
including weather may necessitate installation of a 1/4” underlayment panel prior to resilient flooring installation.
Wood Substrates
f. SHAW resilient flooring is not recommended directly over fire-retardant treated plywood or preservative treated plywood.
The materials used to treat the plywood may cause problems with adhesive bonding. An additional layer of APA rated
1/4” thick underlayment should be installed.
Temperature - Ambient
Controlled environments are critical. Fully functional HVAC systems are the best way to ensure temperature and humidity control.
Temperature - Ambient
• Do not install resilient flooring products until the work area can be temperature controlled.
Temperature - Ambient
• Minimum installation temperature is 65°F with a maximum installation temperature of 100°F.
Temperature - Radiant Heat
Radiant heated substrates must not exceed 85°F (29°C) surface temperature.
Temperature - Radiant Heat
• Several days prior to installing resilient products over newly constructed radiant heated systems, make sure the
radiant system has been on and operating at maximum temperature to reduce residual moisture within the concrete.
Temperature - Radiant Heat
• Three days prior to installation lower the temperature to 65°F. 24 hours after installation, gradually increase the
temperature in increments of 5°F to avoid overheating.
Temperature - Radiant Heat
• After continuous operation of the radiant system, ensure the surface of the floor does not exceed 85°F.