How do you remove mold from plywood?

Bleach will not kill mold for one simple reason. The ion structure of sodium hypochlorite does not allow it to penetrate porous surfaces. Mold is a plant that sends roots into the material on which it grows. When you put bleach on mold which is on a porous surface the bleach part of the solution sits on the surface and the water part soaks into the wood, giving the mold what it wants to grow: water.

What you can try is plain white vinegar, which kills 80% of all mold types. Just soak the surface and see what happens. Even more effective is tea tree oil, but you probably do not have any of that.

positioned it in the dumpster and purchase new furnishings. The water has probable gotten between the wood plys and has mildew starting to be in there which you are able to't get to and if it has cloth upholstrey you will not get it out of that the two.

Try a pressure hose wash with a solution. Ask at the lumber store for what that would be.

There is a product that you can paint wood with, I think it;s called Kilz. Once the wood is covered the mold will not come back.

thanks for answering my floor insulation and reminding me that heat goes up and I need to start there, big idea thanks