T his is a chemical product that is composed of polyol resin and isocyanate. When sprayed onto a surface, it can expand up to thirty to sixty times. This is an air barrier material that can seal cavities in the ceiling, floors and walls against air movement. Spray Foam Insulation is insulation with the help of Open-Cell or   Closed-Cell Spray Foam , and it is one of the best ways to ensure that homes can be more energy efficient and homeowners can enjoy better temperature control and comfort, as well as reduction in their energy bills. Spray Foam Insulation - Pros and Cons There are quite a few  advantages of spray foam insulation . This is a water-resistant insulation, and high density closed cell foam of this type can actually resist water. When closed cell foam is used, there are no risks of mold. It can keep spaces sealed against entry of air, seal the cracks and holes on the walls and help reduce high energy bills for homeowners. Is Spray Foam a Good Insulator? Yes. It has fanta