How do you replace a rotted subfloor on an exterior wall?


How do you replace a rotted subfloor on an exterior wall?


  1. Remove the Baseboard.
  2. Remove Sections of Drywall.
  3. Remove the Floor Covering.
  4. Remove Any Underlayment.
  5. Cut Away the Nails.
  6. Cut Away the Subfloor.
  7. Remove the Subfloor From Under the Wall.
  8. Remove Subfloor From the Other Side (If Necessary)

How do you repair subfloor damage?

How to Fix a Water-Damaged Subfloor: Your 8-Step DIY Guide

  1. Start by Stopping the Water.
  2. Expose the Subflooring.
  3. Make Your Mark.
  4. Carefully Cut Subflooring.
  5. Remove Damaged Materials.
  6. Speed Up the Drying Process.
  7. Reinforce Floor Joists.
  8. Install Your New Subflooring.

How much does it cost to replace subfloor per square foot?

Cost to Replace Subflooring Replacing subfloors will cost between $1.50 and $7 per square foot for materials. Labor costs will be around $27.50 per hour. The project requires the removal of the finished flooring and damaged area and the installation of a new material.

What do you use to fill gaps in plywood subfloor?

Fill Plywood Subfloor Gaps An effective strategy for filling large gaps is to mix patching compound to a stiff, mortar-like consistency, trowel it into the plywood subfloor gaps and wait for it to stiffen before troweling it smooth. Some sanding may be needed when it sets completely.

Why is subfloor so expensive?

(300 sq. ft) Professional subfloor replacements in kitchens and bathrooms may cost more than standard estimates. This is because the contractors may have to move appliances or fixtures to finish the installation.

Can I replace a subfloor myself?

If your subfloor is in need of replacement, the damaged portion will need to be completely cut out. This also requires the removal of all floor covering over the problem area as well as the accompanying underlayment materials. The process for this portion of the job will vary based on the type of flooring you have.

How do I know if my subfloor needs to be replaced?

9 Common Signs of Subfloor Damage

  1. Your floors are uneven or sunken in parts.
  2. Your floorboards squeak – loudly.
  3. The room smells musty.
  4. Your floors shift or bounce when you walk on them.
  5. Your toilet is rocking or loose.
  6. Your tile flooring has cracked.
  7. Your hardwood floor is cupping.
  8. Your linoleum floor is bubbling up.

How much should it cost to replace a subfloor?

The cost of your subfloor 1 replacement largely depends on the square footage of the area. On average, you can expect to pay between $3 to $12 per sq.ft. to replace the subfloor in your home. The price you pay depends on where the subfloor is located, the materials used, and whether or not the installer installs the floor around walls.

How to fix uneven plywood subfloor?

Identify and Prepare the Low Spots. Mark the areas of the floor that need filling in to bring them level with the surrounding areas.

  • Mix and Apply the Self-Leveling Compound. Mix the floor leveling compound with water in a bucket,following the manufacturer’s directions.
  • Lightly Sand
  • How to remove and replace a rotten subfloor?

    Remove the Subfloor From Under the Wall If your subfloor is heavily rotted, you may be able to pull back on the remaining section of the subfloor and remove it by hand. If not, attach a 3/4-inch auger bit to the drill and drill to a depth of 3 1/2 inches underneath the wall bottom plate on both sides of the rotted area.

    How do you fill gaps in subfloor flooring?

    – Clean the floorboards on both sides of the gap. – Apply a fine bead of wood putty to the gap, then work it into the gap with your finger, using circular motions to force the putty down into the gap. – Remove excess putty from the wood surface using a putty knife.