Does bleach kill mold?
Root structures of mold called hypho actually grow into porous material. The nyphy are not killed by bleach because bleach’s ion structure prevents chlorine from penetrating into porous materials such as dry wall and wood. It stays on the outside surface, where mold has protected enzyme roots growing inside the porous construction maerials. When you spray porous surfaces with bleach, the water part of the solution soaks into the wood while the bleach chemical sits on top of the surface, gasses off, and thus only partially kills the surface layer of mold, This is the reason why bleach is not approved by the EPA to eliminate mold. Also note that chlorine bleach causes long term breakdown of wood products like studs, sheathing, plywood, and other building materials as well.