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How To Waterproof Wood Floors

September 19, 2019

You have worked hard, you’ve installed or repaired your wood floor and now you want to protect it from water, and you want to waterproof your wood floors. Good choice, but how to do it? Well, it’s not that difficult. First you’ll need to make sure you have the basic tools:
  • a broom
  • a vacuum
  • polyurethane or urethane
  • a paint brush.

Next, decide what type of finish you want. You can choose from oil-modified urethane, water-based urethane and penetrating sealers. Commonly people settle on using oil-modified urethane because it’s easy to work with and it’s tough.

When Should I Waterproof Wood Floors?

So you’ve got your finish, now you have to pick when you’re going to get the job done. Oddly enough, the weather is important here. Don’t pick a humid rainy day, because it will interfere with the work you’re doing, you could trap moisture between the finish and the wood ruining the hard work you’ve just completed prepping for waterproofing your wood floor. You want a nice dry breezy day, at least about 70 degrees and a strong wind. Warmer is better if you don’t have the strong wind.

You’ve come to the day when you’ll do the work. You’re going to waterproof your wood floors. Clean the room. Think you’re ready? You’re not; do it again. Any little bit of dust on the floor, on the walls, on the little piece of baseboard your forgot to get to, the cobwebs in the corners you forgot to vacuum down (yes, those ones. Be sure that the spiders are gone from the webs, though.) Even if you’re a neat freak, there is always something hidden in corners of the floor. You want to be hyper vigilant about this cleaning process; any dust left on the floor can make your finish uneven or rough and ruin your floor. If you do additional coats you will have to repeat this cleaning process between each coat.

Keep The Room Ventilated!

Now for a word you want to really remember: ventilation. Open the windows. Urethane has a strong odor; you want to really be sure that you’ve got a good flow of fresh air to protect you from the fumes. This stuff can give you a wicked headache and possibly nausea. Also, make sure there is a screen in the window, keep those dust particles out of the room, otherwise you will be cleaning again before you get started.

Now comes the fun part. You’re going to apply the first coat of finish to your wood floor. You are going to waterproof your floor. Brush the urethane on evenly. A note about the brush, it is worthwhile to invest in a high quality brush for this process. It will make the finish smooth and clean up easier. Start your application in the corner of the room furthest from the exit. You’ve just had an a-ha moment, haven’t you? We cannot tell you how many people we’ve seen who start near the entrance and then brush themselves into a corner. Learn from their mistakes. Once you have your first coat of waterproofing down on your wood floor, you’ll need to let it dry. After it’s dry you will repeat the process, again starting from the point furthest from the exit of the room. Most likely you will end up doing two to three coats on the floor. But after that third coat, you will have waterproofed your wood floor. And if you need any professional assistance with water-proofing your wood floor or otherwise working with water damage, we’re your best choice. We’ve been doing this for a while, so be sure to give us a ring if you need some help.

Frequently Asked Questions


Most home insurance policies cover sudden and accidental water damage from burst pipes. Check your policy details for specific coverage.

Yes, a broken water heater can lead to a high electric bill. If it's not heating water efficiently, a broken water heater may consume more energy and increase your utility bill.

Yes, if you have a broken water heater, it can potentially lead to carbon monoxide leaks. If you suspect a carbon monoxide leak, call us for an emergency response.

How can carbon monoxide come from a water heater?

While minor leaks can be fixed with DIY methods, it's advisable to consult a professional restoration company, like Accutech Restoration & Remodeling, for significant damage to ensure proper repair and prevent future issues.

Yes, mold can grow under tiles if there is constant moisture or water damage.

Yes, water can seep through grout lines if they are cracked or improperly sealed. You may contact us for help with water leaks and bathroom floor water damage.

Yes, we can remove mold from carpets affected by water damage. We use specialized cleaning techniques to prevent health risks.

Homeowners' insurance typically covers water damage caused by a water heater leak or broken water heater, but it may not cover the cost of repairing or replacing the heater itself. You may contact us for help navigating your insurance claim.

We recommend clearing the area around the damaged drywall to give our technicians easy access.

Preventing flood damage involves proactive measures such as maintaining gutters, ensuring proper drainage around your property, and considering flood-resistant building materials. Accutech Restoration & Remodeling offers tips and resources to help you safeguard your home against future flooding incidents.

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