CFI Moisture Testing & Environmental Conditions 2

Question 1

What is the recommended temperature range for installing most resilient flooring products?

Accepted Answer

65°F to 85°F (18°C to 29°C)

Answer

Most resilient flooring manufacturers specify installation temperatures between 65°F and 85°F to ensure proper adhesive performance and material pliability.

Question 2

Why is it important to maintain consistent room temperature for at least 48 hours before and after installing hardwood flooring?

Accepted Answer

To allow the wood to acclimate to the space's temperature and humidity conditions

Answer

Hardwood is hygroscopic and its moisture content changes with ambient temperature and humidity; stable conditions allow the wood to reach equilibrium before and after installation.

Question 3

What tool does a flooring installer use to measure the ambient relative humidity at the job site?

Accepted Answer

A hygrometer or sling psychrometer

Answer

A hygrometer measures ambient relative humidity in the air, which affects wood acclimation and adhesive performance during installation.

Question 4

What is the ANSI/NWFA recommended relative humidity range for a space where hardwood flooring will be installed?

Accepted Answer

30% to 50% RH

Answer

NWFA recommends maintaining interior RH between 30% and 50% to keep hardwood flooring within its acceptable moisture content range year-round.

Question 5

What is the purpose of the plastic sheet test (ASTM D4263) performed on a concrete slab?

Accepted Answer

To detect the presence of moisture migrating through the slab surface

Answer

The plastic sheet test is a qualitative field test that detects moisture presence by observing condensation under taped plastic sheeting after 16–24 hours.

CFI - Flooring Installation and Maintenance Certification Practice Test

CFI - Flooring Installation and Maintenance Certification Practice Test

CFI Moisture Testing & Environmental Conditions 2