A warp across the board in wood plank siding.
Isolated areas of paint with upward curving edges, forming saucer shapes, which can draw a weak support with them. Caused by a slight shrinkage of the support or by chemical contraction of the upper layer of the paint which prevents the cracked paint from lying flat.
the curvature that occurs in the cross section of a piece of timber ie in the end of a board.
Cupping is when the center face of a board is lower in the middle than both edges. Cupping is a often a response to excess moisture or dryness on one surface of the board or from sanding a crowned board smooth, which appears as a cupped board when the floor relaxes to its original position. Cupping is the opposite of crowning.
The upward formation of wood (floor) planking, caused when moisture is absorbed from below the wood (floor) planking. debris The building material waste after demolition, rubbish, the damaged and unwanted waste after a storm. deck An uncovered platform generally constructed of wood, a metal structural component used as flooring or roofing.
When the outside edges of an installed flooring board curl, forming a slight cup like effect across the board. Some cupping is normal during extremely hot and humid weather and usually eases flat as the ambient environment cools or dries.
A specific type of warping when a panel becomes "U" shaped lengthwise or width across the face (i.e. concave).
This is when the edges of a board bend with the grain away from the center to form a concave shape.
The uplifting of the edges of flooring due to excessive moisture.
When shingles are improperly installed over an existing roof or are over-exposed, they form a curl or cup.
A concave or dished appearance of individual strips, with the edges raised above the center.
Aged paint, loosened by cracking, with edges curling to create cup-like formations. Cupping Examples
A specific type of warping when a board becomes "U" shaped across the face. Can be convex or concave. Caused by moisture change on one side of the floor.
A type of warping that causes boards to curl up at their edges.