How to Dry Wet Subfloor DIY | Water Damaged Subfloor | Dry Subfloor DIY
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How to Dry Wet Subfloor DIY

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Drying Wet Subfloor

Drying wet subfloor or water damaged subfloor, can be really easy if you know how to do it.  Learn from our article and video on how to dry subfloor yourself (DIY), with inexpensive equipment and materials.

Wood subfloor is one the most common building materials to get wet in a bathroom, kitchen, or utility room. Wooden subfloors are found above crawlspaces and on second stories. Restorex Disaster Restoration builds small drying chambers to dry small areas of wet subfloor using plastic, tape, and a small electric heater.

This is something that a handy homeowner would be able to accomplish themselves. We created this article and video for our customers who are willing to take the free advice.

4 Easy Steps for Drying Wet Subfloor

  1. Remove Wet Flooring
  2. Buy Supplies
  3. Build Drying Chamber
  4. Dry the Subfloor


Step 1: Remove Wet Flooring

Typically the flooring that is covering the subfloor will be ruined from the water damage.  In order to expose the wet subfloor, you have to remove the flooring that is installed above it.    This will probably require a pry bar and a hammer.


Step 2: Buy Supplies

Buy the products and heater to build the drying chamber.  These are the products we recommend:


Step 3: Build Drying Chamber

The next step is to build the drying chamber.  You want to make sure that the plastic covers the entire area that needs to be dried.

Then, take the heater and turn it upside down to put the plastic over the snout of the heater.  You do not want to put the entire heater under the plastic because, the internal thermostat, will shut the unit down and will not continue to run.

Next, you seal all the edges of the plastic with tape to keep the chamber air tight.  Then turn on the heater and the chamber should fill with hot air.


Step 4: Dry the Subfloor

Let the heater continue to dry the floor for approximately 3 to 4 days.  If you want to check moisture content of the floor each day you can invest in an inexpensive moisture meter.  Lowes sells a General Tools Digital Moisture Meter that you can use to track the progress of the drying.  To avoid future rotting or mold damage I would thoroughly dry the subfloor before putting new flooring materials back on the sub-floor.



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