As a product, spray foam insulation does not attract mold. And unlike wood or metal, spray foam does not rot, rust or deteriorate. This means that an area properly sprayed with foam insulation will never become a food source or a hospitable environment for a mold colony.Click to see full answer. Also asked, is insulation mold resistant?Insulation is your first defense in mold prevention. Fiberglass, a non-biodegradable substance is resistant to mold. With its sharp, ground glass, mold spores puncture before they can attach to it. Mold can grow on the fiberglass insulation backing, which is made of paper and is a mold food source.Furthermore, will insulation mold if it gets wet? Wet insulation in a closed wall cavity will usually not rapidly dry out. Wetness (existing even just for a few days) will not only reduce the insulating quality of the insulation, but it might not dry soon enough to prevent mold and wood decay from forming. One may also ask, does open cell foam mold? According to Frank, moisture can be a concern if you construct a home and insulate it with open-cell spray foam. If closed cell is used, the moisture cannot make its way to the wood and present mold issues.Will mold grow on fiberglass insulation?Fiberglass does not support mold growth, but it gets dirty, and the dirt grows mold, and it is often paper faced and this paper grows mold. In addition some fiberglass insulation contains urea based binders that do support mold growth.
