Cupping
What you need to know
Cupping of hardwood appears as a convex or dished surface profile across the width of boards and occurs as a result of a moisture imbalance, whereby the bottoms of the boards contain higher moisture than the tops. Oftentimes a cupped flooring surface will appear as a rippled or washboard in the installed floor. Lighting conditions often enhance the cupped appearance of the floor. The source for cupping is environmentally driven and most commonly originates from elevated moisture conditions in the subfloor, which then infiltrate into the bottom of flooring boards following installation and cause a moisture imbalance. This condition can develop …..
Industry Standards
The 2018 National Wood Flooring Association publication C200 hundred, Problems, Causes and Cures states the following on page 6.
Cupping: definition: A concave or…..
Splits – Cracks
Wood Distortion
Wood Shear (Engineered Flooring)
Hollow Sounds
Dry Cupping – Engineered Hardwood
White Lines
Water Damage
Vapor Retarder
Splinters (Slivers)
Side Bonding
