Replace subfloor?

Hey all, Started a quick entryway update and it spiraled. Found moldy drywall under the old doggy door, tore it out, and discovered rotted wood flooring. I'm planning to close off the doggy door to fix the leak, but now I'm stuck at the subfloor. The subfloor is stained(?) brown — It's right under a doggy door that the previous owner installed. It's been exposed for weeks but still feels damp in spots. I seems I can ...scratch the stain off? And the wood feels solid when I poke it with a screwdriver. I grabbed a mold sealer but not sure if I should just seal it and move on, or if I should cut and patch parts of the subfloor. Also, since the old wood floor is out, is adding another subfloor layer the usual way to level it for LVT? Trying to keep this cheap — project definitely got away from me. Thanks for any advice! submitted by /u/Nice-Conclusion728 [link] [comments]

Apr 26, 2025 - 00:59

Hey all,
Started a quick entryway update and it spiraled. Found moldy drywall under the old doggy door, tore it out, and discovered rotted wood flooring. I'm planning to close off the doggy door to fix the leak, but now I'm stuck at the subfloor.

The subfloor is stained(?) brown — It's right under a doggy door that the previous owner installed. It's been exposed for weeks but still feels damp in spots. I seems I can ...scratch the stain off? And the wood feels solid when I poke it with a screwdriver.

I grabbed a mold sealer but not sure if I should just seal it and move on, or if I should cut and patch parts of the subfloor. Also, since the old wood floor is out, is adding another subfloor layer the usual way to level it for LVT?

Trying to keep this cheap — project definitely got away from me. Thanks for any advice!

submitted by /u/Nice-Conclusion728
[link] [comments]