Hardwood Floors April/May 2019

CHECK YOUR KNOWLEDGE RESOURCES

1. When inspecting a factory-finished floor prior to sanding, you discover it was finished with

aluminum oxide. What is the recommended process? A. Use a fine-grit abrasive, followed by a coarser grit B. Move quickly to avoid liquefying finish C. Use a more aggressive first cut D. Sand at a 45-degree angle

2. What is the minimum recommended wear layer thickness that is still acceptable to sand?

A. 1/16” B. 3/16” C. 1/32” D. 3/32”

3. Wood floor finishes applied before which year must be tested for lead?

A. 1978 B. 1985 C. 1986 D. 1998

4. In which circumstance is simply abrading and recoating the floor the best option?

HOW DID YOU DO? See suggested NWFA University learning path on page 102. Answer key is on page 142.

A. The floor has visible dents B. The floor has wear patterns

C. The customer desires a different floor color D. There are light scratches in the surface finish

5. When sanding a new plank or strip floor, in what direction should the first cut of the floor be sanded when using a belt or drum sander? A. At a 45-degree angle to the direction of the flooring B. At a 7- to 15-degree angle to the direction of the flooring C. Against the grain D. At a 15- to 30-degree angle to the direction of the flooring

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