Mold Proof Drywall – Does it Work?

Mold resistant drywall is being used everywhere these days and is heavily pushed by the manufacturers for residential and commercial installations.  The basic principle of the product is to eliminate the traditional paper facing from the outer faces of the gypsum slabs. Most manufacturers make slabs that are either homogenous (same material through-and-through, with no layers) or have a fiberglass mat which substitutes for the paper facing. This is supposed to prevent mold from growing on organic materials and hence, your walls are now mold free.  But does it work?

No wall covering manufacturer will warrant that their product is mold-proof; only that it stands a lower chance of growing mold and mildew than traditional paper-faced drywall.  In fact, Georgia-Pacific expressly states in its warranty for ToughRock that it does not cover “Mold, mildew, fungi, bacteria or other similar conditions.” It should be noted that G-P is not alone; other manufacturers state this in their warranties.

The key to keeping homes free from mold has always been and always will be keeping them free from water and controlling humidity issues.  Whether it’s this type of drywall, so called, “mold resistant paint,” or the use of pressure treated lumber, if you have conditions which are conducive to growth, then you will get mold and will need mold remediation.  So be sure to remember if you’re hiring a contractor for any type of renovation, no product will prevent mold if you have humid and wet conditions in your home.

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