What type of protection do you need?
The fiberglass insulation in your basement and crawlspace may be a breeding ground for mold and mildew. This fiberglass insulation may also be a key factor in that musty basement smell or a cause of allergic reactions. Not only does closed-cell spray foam insulation improve indoor air quality by preventing moisture and condensation, but it deadens sound and reduces heating and cooling bills.
The EPA estimates that by sealing open cracks, nooks, crannies, and adding insulation homeowners could save 20% on monthly energy bills. The installation of spray foam insulation will not only save you money on energy bills and reduce energy consumption thus helping to protect the environment, but it will pay for itself over the course of time.