Expanding foam insulation is a method of applying a liquid resin that reacts with air to expand into its surroundings. The resin can be injected into small or large voids to fill the space with a solid foam. The resulting foam can seal gaps and cracks to prevent air from entering into your home. It can be sprayed onto larger areas to provide a thick layer of insulation for resistance to heat transfer.
There are many benefits to this form of insulation over traditional materials. These benefits include ease of installation and durability.
If you are looking at insulation for your home, there are more choices than blown cellulose and pink fiberglass. Expanding spray foam insulation is increasingly popular due to its many benefits.
Expanding spray foam insulation is made of polyurethane or acrylic latex. The foam has been used in refrigerators and water heaters for many years.
Liquid polyurethane is pressurized and released through spray nozzles. When the spray lands on surfaces it expands and foams up, then hardens to a aerated material. Traditional insulation such as cellulose wool or spun fiberglass leave gaps and voids when applied as ceiling and wall insulation. Expanding spray foam insulation fills out to all cracks and into seams even if they are hidden from view. The sealing ability can practically eliminate air flow and energy transfer.
Fire resistant foam insulation contains fire retardant, and some are specifically formulated for fire resistant use. If you need a fire resistant foam for insulation, be sure to choose one specifically marketed as such. These products possess a higher degree of fire resistance than standard foam insulation.
Fire Resistant Applications include :
– fire resistant installation of window and door frames
– fire and smoke resistant sealing of connections between walls, ceilings and floors
– sealing of all openings in roof constructions
– sealing of cable and pipe penetrations in walls
– improving thermal insulation in heating and cooling systems