Alpine Heating and Cooling in Knoxville – What Is Foam Insulation?

Foam insulation is a type of insulation that is sprayed onto walls or into small, difficult to reach places. Although it is more expensive than polystyrene and fiberglass insulation, which is installed in sheets or blocks, it is more effective in places like attics, where there may be unfinished walls or ceilings. Good, solid home insulation is crucial for reducing heating and cooling bills, and preventing damage from moisture and vermin.

Mini Split Heating and Cooling in Knoxville – Foam Insulation.

Polyurethane foam insulation is mixed with water, then sprayed under pressure from a pneumatic pump. As it mixes with oxygen from the air and the water dries, the foam expands, then hardens and cures within a few minutes. The volume of dry spray foam is five to ten times greater than that of wet spray foam. Spray foam is also self-adhering. This makes it possible to spray it under a floor without taking up the floor first, and it is much easier to apply to ceilings than sheets of insulation that must be glued or stapled into place.

Split System Heating and Cooling in Knoxville – Polystyrene and Fiberglass.

Polystyrene and fiberglass insulation cover small holes, but they do not seal them. Spray foam insulation expands to fill up crevices, and it can be applied to places other types of insulation can’t reach. The foam prevents not only the entry of hot and cold air, but also insects, rodents and other vermin, and water. 

Ductless Heating and Cooling Systems in Knoxville – Existing Buildings.

Spray insulation is used in new houses as they are being built, but it can also be used in existing buildings to insulate places the old fiberglass insulation cannot reach, or in crevices that have developed as the structure settled.