WLFI Inspection Procedures & Problem Diagnosis 3

Question 1

An inspector observes that a wood floor has a consistent bow (high center, low edges) across multiple boards in the same run. This is called:

Accepted Answer

Crowning

Answer

Crowning occurs when the center of a board is higher than its edges, often caused by moisture on the surface or previous cupping that was sanded while still wet.

Question 2

What is the primary purpose of the acclimation period before installing solid hardwood flooring?

Accepted Answer

To let the wood reach equilibrium moisture content with the installation environment

Answer

Acclimation allows the wood's moisture content to equalize with the ambient conditions in the room, minimizing post-installation movement.

Question 3

During a wood floor inspection, the inspector identifies a buckled area where boards have lifted several inches off the subfloor. The most likely cause is:

Accepted Answer

Extreme moisture exposure with no room for expansion

Answer

Buckling occurs when flooring absorbs excessive moisture and expands with nowhere to go because expansion gaps are insufficient or obstructed.

Question 4

An inspector is evaluating a glue-down engineered wood floor. Which test best determines if the adhesive bond has failed?

Accepted Answer

Walk the floor and listen for hollow or drumming sounds

Answer

A hollow or drumming sound when walking or tapping indicates that the adhesive bond has failed and the board is no longer adhered to the substrate.

Question 5

A homeowner complains that their prefinished solid hardwood floor shows numerous small cracks along the length of individual boards. This defect is called:

Accepted Answer

Checking

Answer

Checking refers to surface cracks that develop along the grain of a wood board, typically caused by rapid or extreme drying.

(WLFI) Wood and Laminate Flooring Inspector Practice Test

(WLFI) Wood and Laminate Flooring Inspector Practice Test

WLFI Inspection Procedures & Problem Diagnosis 3