Spray Foam Insulation and Mold

Spray foam insulation.

Spray foam insulation is a polyurethane product that's pumped to wherever insulation can be installed. Spray foam insulation is great for keeping heat in during winter and cold in when it's summer. Read on to learn more about this type of insulation and how it is affected by mold growth.

Mold Growth

If spray foam insulation is properly installed with an air tight seal, mold will not grow. However, mold can form if the insulation was poorly installed and moisture was allowed to get inside the walls. To remove the mold, you will have to remove the drywall and chip away the foam.

Professional vs. DIY

You can install spray foam insulation yourself to save money. This material is very messy, and cleanup is another hassle. This type of insulation is best left to the professionals. They will get the job done quickly and correctly, preventing the formation of mold.


Spray foam insulation can adhere to anything making it great for under floors. It also solidifies as it dries to create a hardened wall of insulation, which keeps out insects and vermin. Spray foam insulation is also impervious to the moisture that can create mold.


Spray foam insulation is messy and 30% more expensive than fiberglass. It is also difficult to install.