Spray foam insulation can be a great alternative to traditional insulation materials like rock wool, fiberglass and cellulose. It is resistant to heat loss, wood decay, mold, and dampness and will last a lifetime. It dramatically reduces outside noise entering your home or business.
Spray foam insulation is made when two materials, an isocyanate resin and a polyol, are heated to create an expanding foam. This foam is then applied to a particular area. The liquid quickly turns into thick, dense foam insulation. It resists heat loss, wood-rot, mold, and dampness. It doesn’t degrade and it lasts a lifetime.
Spray foam insulation has the unique ability to form an “air sealing” which creates an airtight environment within a building. Air sealing prevents heat from escaping the house. This can help reduce utility bills as well as keep the home cooler during hot months.
Most attic insulation is sprayed with open-cell spray foam. In order to let moisture escape your structure, Irish building regulations mandate that a 50mm air space be left between the roof deck or felt and top of the insulation material.