Spray foam is a type of liquid foam used for insulation purposes in a building. It is ideal for the loft, walls, floors, roof, and other areas to ensure high protection from extreme weather conditions. Spray foam insulation utilizes different types of materials that will help obtain optimal results after the installation process. Building owners who want to insulate their spaces with spray foam should consider knowing more about the costs in detail. This will help a lot to make the right decision while investing money. Knowing the types of Spray Foam Insulation Building owners should know the types of spray foam insulation from different sources that give ways to select the right one accordingly. Open-cell foam insulation and closed-cell foam insulation are the two types available for buildings that cater to their needs. Open-cell foam insulation is lighter whereas closed-cell foam insulation is rigid and dense. Moreover, both of them have different expansion rates and agents during