What You Should Know About Waterproofing Hardwood Floors in Your Bathroom

September 23, 2021 9:34 pm Published by Leave your thoughts

If you’re going to install hardwood flooring in a bathroom, it’s important that you waterproof it so it will not be damaged by the inevitable water spills and drips that will occur. Without waterproofing, water can seep into the floor and settle there, which will cause warping, shrinkage and potential mold growth.

It will also be imperative that the flooring be installed perfectly, with no gaps for the moisture to get into. Remember that you are dealing with the wettest, most humid room in your home!

Here are a few tips to help you get the best results out of waterproof hardwood flooring in the bathroom.

Perform on-site finishing

You should finish your hardwood floor on-site in your bathroom rather than installing pre-finished boards. When you finish the floor on-site, this fills the seams between boards with coating to block moisture from getting below the boards or into the core.

There are other products you can apply after finishing the wood to help improve water resistance, but you will always need to remove standing water as quickly as possible to avoid damage to the finish.

Sanding and cleaning

Before installing any kind of waterproofing product, it’s important to properly prep the floor. Clean the entire area to make sure it’s free of clutter, dust and debris. Repair any damage in an existing wood floor before going any further. You should then sand the entire floor before proceeding with the finishing process. Make sure you take your time and don’t rush through this—use several levels of grit, and make sure you get the areas along the edges.

When sanding is complete, you’ll need to thoroughly clean and vacuum once again before proceeding.

Priming the floor

For waterproofing purposes, you’ll want to use an epoxy water-based primer, and apply it with a brush or roller to make sure you’re getting even strokes. You should coat approximately eight inches of the wall with the primer and sealer as well to ensure thorough waterproofing. Follow all the instructions on the primer when applying to make sure it functions properly.

Filling in the gaps

After the primer has had time to fully dry out, you should begin filling in cracks with silicone to seal off the gaps between the floor and the wall, as well as any cracks that may be present in the floor. This will ensure any cracks and gaps that could hold moisture will be sealed. Expect to have to wait 24 hours for both the primer and silicone to dry.

Apply the waterproofing agent in layers

Again, waterproof approximately six to eight inches off the floor onto the wall to ensure thorough waterproofing. Start with the wall first before moving to the floors, following all instructions on the label.

You will need to apply at least three layers for the waterproofing properties to really work as they should.

For more information and tips about waterproofing your hardwood floors in your bathroom, reach out to the experts at SNR First Rate Floors today.

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