Grain Raise (Hardwood Finish Issue)
Grain Raise (Hardwood)
Floor Detective® Defect Guide
What You Need to Know
• Grain raise is an appearance-related surface condition in which wood fibers swell and stand upright, creating a rough or fuzzy texture on the finished surface
• The condition occurs when moisture is introduced to the wood surface during finishing, cleaning, or environmental exposure
• Grain raise affects the wood substrate itself rather than
Grain Raise (Hardwood Finish Issue)
December 16, 2025
Grain Raise (Hardwood) Floor Detective® Defect Guide What You Need to Know • Grain raise is an appearance-related surface condition...
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Splits – Cracks
August 7, 2023
The 2018 National Wood Flooring Association Publication C200, Problems, Causes, and Cures, states the following on page 14. Splits/Cracks Definition:...
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Wood Distortion
December 5, 2022
What you need to know The National Wood Flooring Association (NWFA) states the following on page 4 of the 2018...
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Wood Shear (Engineered Flooring)
January 1, 2022
What you need to know The National Wood Flooring Association (NWFA) states the following on page 9 in 2018 Technical...
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Hollow Sounds
October 20, 2021
The National Wood Flooring Association (NWFA) states the following on page 28 of the 2018 Technical Publication C200, Problems,...
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Dry Cupping – Engineered Hardwood
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Dry Cupping (Engineered Hardwood) Floor Detective® Claims and Conditions Guide What You Need to Know • Dry cupping is a...
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White Lines
March 17, 2021
What you need to know White Line Syndrome (WLS) is a condition that can occur on a site-finished floor that...
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Water Damage – Laminate
March 17, 2021
Water Damage (Laminate) Floor Detective® Defect Guide What You Need to Know • Laminate flooring is moisture resistant, not waterproof...
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Vapor Retarder
March 16, 2021
What you need to know A vapor retarder is a vapor-resistant material. In new construction, vapor retarders are often architecturally...
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