How do you replace a subfloor in an old house?

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Subsequently, Can I put new subfloor over old subfloor? Install a layer of at least 1⁄2” or preferably 5/8” ply over the existing planks. This is particularly important if your old sub floor has lumps and bumps in it. If you don’t respect this thickness of ply, then you’re highly likely to see rises and falls in your new flooring.

How do I know if my subfloor is rotten? How do I know if My Subfloor is Rotten? A water-damaged subfloor feels spongy underfoot. It might bounce or squeak when you walk across the room. Sagging boards, damp spots and unpleasant musty smells are also signs of a rotting subfloor.

Yet, Is it OK to have no subfloor? Also, any boards that run underneath a wall will be almost impossible to fully remove, so you’ll have to make cuts at the wall to get them out leaving a small chunk remaining underneath the wall to support it. Other than these two small things, an old house with no subfloor should not be a problem for you.

How do you fix a rotted subfloor?

Is it easy to replace subfloor?

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 thick should a subfloor be?

The minimum thickness of plywood for subflooring is about 5/8 inch. Since it does not hold fasteners as well as plywood, OSB must be a little thicker, or at least 23/32 inch. There are several factors that determine what subfloor thickness is optimal for added benefits like insulation.

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

Here are five signs it’s time to replace a subfloor.

  1. Those squeaks could be calling for your attention. …
  2. Sinking sections are tell-tale signs of subfloor failure. …
  3. Moisture could be causing your cupping floorboards. …
  4. Cracked and popping tiles could be a material issue. …
  5. Possible water damage is always a concern.

Does the subfloor go under walls?

A subfloor is the solid base underneath the floor covering that you depend on for the stability of both the floor and walls in a room. Though it’s not the main support system—that’s the work of beams, posts, and joists—it does its fair share of the work.

How do I know if my subfloor is rotted?

How do I know if My Subfloor is Rotten? A water-damaged subfloor feels spongy underfoot. It might bounce or squeak when you walk across the room. Sagging boards, damp spots and unpleasant musty smells are also signs of a rotting subfloor.

Can I replace my own subfloor?

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 you fix a subfloor underneath?

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