What causes the floorboards to come apart? Because wood is a natural product, it expands and contracts with changes in moisture and temperature. Wood expands when it absorbs moisture from the air and is exposed to high temperatures and moisture levels.

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How do I keep my hardwood floors from separating?

Use a humidifier in the winter months to keep your home’s relative humidity stable and prevent large gaps in your wood floors. In the summer, use exhaust fans and dehumidifiers to keep the air dry. Wood filler can be used to fill in small gaps up to 332 inch wide.

Can gaps in hardwood floors be fixed?

Repairs are not required for minor gaps. As the wood expands, filler will be pushed out by the expanding wood. Call a professional contractor to fix larger gaps in your floor that won’t close. Repairing a hardwood floor is best done between April and October.

Why is my wood floor coming apart?

Every hardwood floor is subject to some board-to-board gapping. Wood flooring releases moisture and shrinks during the winter months when the house is heated and the air is dry. Thin cracks appear between the boards when this occurs. This is perfectly normal and completely fine.

How do you fill gaps in hardwood floors cracks?

Fine sawdust can be used to fill in gaps in an unfinished floor. To avoid the appearance of unwanted texture, it is best to use sanding dust made from the same species of wood as the wood being sanded. Fill the cracks with a mixture of dust and polyurethane.

How do you fill cracks in old hardwood floors?

A flexible putty knife, a stiff brush, and a vacuum cleaner could all be helpful tools. To mask the edges of the boards but leave the gaps unmasked, he advises. This could be done with blue painter’s masking tape. You can then use a plastic putty knife to spread and level the gap filler.