Spray Foam Insulation (SFI) is a liquid foam and air barrier material that seals against air flow and can be used in lofts, walls, under floors, ceilings, barns, boats, warehouses, and industrial buildings. Typically, spray foam insulation is made of two distinct chemicals, such as polyol resin and isocyanate, which are combined to form a rigid foam that resembles a cloud and is used as an insulating layer. Spray insulation causes the fluid to immediately expand by 100 times its initial liquid volume. At *Spray Foam Insulation Quotes Compare, compare’s local and national companies all in 1 click, providing you with up to 3 FREE quotes; ensuring we only send your enquiry to trusted accredited installers. Saving you both time and money! Sit Back & Click to Compare Prices Now