Glossary

A type of insulation made out of open cells. This type of insulation can be bought at hardware stores and is commonly pink. Since it is open cell, moisture can pass through the porous material where it is absorbed. Once open cell insulation is wet it loses its effectiveness.

Old building code dictated crawl space vents be installed to allow air to flow in and out. We now know this simply doesn’t happen. Instead, outside air is trapped beneath floors where it finds its way into the living areas of the home. It’s best to seal vents if your home currently has them.