engineered wood floor cupping
This is quite normal and the gaps generally disappear when the season changes and RH increases. Wood is hygroscopic meaning that it absorbs and releases moisture.
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The issue comes from moisture content changes.
. This problem can happen with either solid or engineered hardwood flooring and is a response to changes in the moisture content of the wood. Cupping occurs whenever the individual planks of a floor become concave in the center and rounded on the sides thereby creating a sort of cup or bowl. Causes for dry cupping may include the following.
Anything from pipe leaks to a still-wet concrete slab to improper HVAC usage can cause cupping. It gives a wavy or cupping appearance which is known to us as hardwood floor cupping. Cupping has occurred when the sides of flooring are higher than the center of the boards-the surface of the board has a concave shape.
The National Wood Flooring Association states the following on page 8 of the 2018 Technical Publication Problems Causes and Cures. Both conditions have to do with the moisture. When one side of the wood board is exposed to moisture or water that side will warp away and edges curl up.
A concave or dished appearance of individual engineered flooring planks with. If youre fortunate to have engineered floors the cupping is reduced due to its structure or the way its manufactured. When relative humidity levels remain below the manufacturers recommendations for long enough engineered planks can begin to dry cup.
Whether the wood flooring is solid or engineered wood it can be subject to crowning and cupping. It ends up looking a little like an accordion. When one side of the floor is exposed to excessive moisture that side will expand causing the.
The simplest way to think of wood floor cupping is to imagine the edges of each plank sticking up higher than the centers. If you imagine a picture of a child drawing a boat in the water then the water will give you a good idea of what a cupped floor looks like. When water seeps into a plank of wood flooring the side of the board closest to the moisture will expand.
A more extreme consequence of low RH is dry cupping. Diagnosing the issues means visually inspecting the boards and looking for whether the center of the board is higher than the sides crowning or the sides of each board are higher than the center cupping. While water wont necessarily ruin your engineered hardwood flooring every time most engineered flooring has a softwood core that is not water resistant and when it absorbs enough water it will start to expand causing issues like cupping or buckling.
Hardwood floor cupping is a common issue of a hardwood surface. Any wood floor can suffer from cupping. Dry Cupping is a concave or dished appearance of individual engineered flooring planks with the edges raised higher than the center.
There are design considerations for. It may be considered to be the opposite of crowning where the center of a plank rises higher than the edges. In both cases your floor will lose its even smoothness resulting in its surface becoming irregular.
What are Crowning and Cupping. It most commonly occurs with prefinished and engineered wood floors. Normally when wood floors dry out gaps appear between the boards.
After all both engineered and solid hardwood consist of real wood which warps when it absorbs water. Solid and engineered wood flooring can both cup. Due to water or humidity the edges of the wood planks get higher than the center of the board.
Wood floor cupping is when the sides of hardwood floors are higher up than the center of the boards. Cupping occurs when the edges of the board are higher than the center of the board creating a concave shape. Cupping in hardwood floors refers to a condition that causes individual planks to rise at the sides.
Well discuss each construction separately as the dynamics are different. Most engineered hardwood floors are around 5 inches wide a size that is less susceptible to cupping than wider boards. This produces a concave-like look on the floor.
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