NWFA CWFI case studies
NWFA CWFI · Put your knowledge to work in context.
The NWFA Certified Inspector credential is one of several certifications offered by the National Wood Flooring Association, listed alongside Certified Sales Advisor, Certified Professional, Certified Sand & Finish, and Certified Installer. It is intended for wood flooring professionals who want to validate their knowledge and expertise in inspecting wood floors, and NWFA states that its Certified Professional program "validates your industry knowledge and expertise and recognizes you as an expert in your field." Certification is not automatic: NWFA lists only certified professionals in its "Find a Professional" directory, so the credential also serves as a marketing signal to consumers and peers. The NWFA CWFI case studies are 5 cases and about 2,905 words.
1Winter Gapping in a Solid Oak Strip Floor
A homeowner in a 1990s two-story house reports 1/16 in. gaps between boards of a 2¼ in.
575 words, about 3 min2Failed Concrete Moisture Test and Cupping in a Clubhouse
A 4,000 ft² engineered 7½ in. wide white oak plank floor is glue-down over an on-grade concrete slab in a newly constructed clubhouse.
586 words, about 3 min3Crowning After Sanding a Cupped Kitchen Floor
solid white oak floor in a 12 ft by 18 ft kitchen was installed nail-down over plywood and finished on site 14 months ago. In June the homeowner noticed cupping: board edges about 1/16 in.
547 words, about 3 min4Cold-Garage Acclimation of Engineered Hickory
wide engineered hickory plank is delivered in January to a new home in a cold climate. The cartons sit in an unheated garage at 38°F for nine days.
605 words, about 3 min5Buckling in a 40 ft Community Hall
solid maple floor is installed in a 24 ft by 40 ft community hall over a plywood subfloor on sleepers above a concrete slab. The flooring runs the 40 ft length.
592 words, about 3 min