Refinishing Painted Cupped Hardwood Floors

Sanding can help flatten the raised floor surface and bring it back to normal.

Refinishing painted cupped hardwood floors. After sanding the floor is usually refinished to restore its sheen. Moisture from below can affect the moisture content of hardwood floors. At this point the floor may now be ruined and need to be replaced. Increase the relative humidity in the room with cupped floors to 20 percent to prevent cupping from the air being too dry.

Most drum and edger sanders have built in vacuums and dust bag systems to reduce dust emissions. Repairing and refinishing old hardwood floors can be a labor intensive and complex process. Here s a look at ways to determine whether you need a simple repair a full refinishing job or to simply start fresh with a new hardwood floor installation. After sanding fill in holes in the floor with wood putty or wood filler.

See the picture at the top of this post for an example of a cupped floor. During refinishing an experienced hardwood floor sanding specialist will remove just 75mm to 1mm of the wear layer. How to fix cupped hardwood floors. Rent equipment such as drum sanders and edger sanders.

Hardwood floor refinishing is an affordable way to spruce up your space without a full floor replacement. Sanding a cupped floor flat before it is brought to a normal mc can eventually result in a crowned floor convex surface once the drying process is complete. If a hardwood floor is installed before a subfloor is properly dried or before the floorboards reach an equilibrium moisture content emc such as before the inside of a building s air is conditioned there is a chance for cupping later on. There are factors that reduce the number of times any engineered hardwood floor can be refinished.

We ve got step by step instructions tips and tricks to get your hardwood flooring looking good as new. Cupping in engineered wood floors. The majority of floors were constructed of wood planks from 8 to 18 wide because narrow boards were expensive to prepare in a pre industrial era and therefore reserved for the best rooms. As furniture and people begin to inhabit the area it will bring about a new level of moisture and.

The center of the board dips below the edges. Wet floors should not be sanded flat until the drying process is completed. At this stage you should consider sanding the cupped portion of the floor. This makes the wood appear to be in a u shape.

Follow our guide to learn if refinishing hardwood floors diy is for you. Using simple division for common flooring thicknesses we can determine how many times the engineered hardwood can be refinished.