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The Basics of Spray Foam

The Basics of Spray Foam

Not all buildings are created equal. While finishes and architectural design look good to the eye, the true efficiency, function and durability can not be seen. That value can be felt in the comfort of your home and reflected in the savings in your bank account.

  • The Building Envelope. The outer shell of the building that separates inside from outside. It is made of two barriers that have in the past been separate, and hopefully intact.
  • The Thermal barrier, insulation that slows the conduction of heat from the warm inside to the colder outer. Typically fiberglass, originated in 1933, glass strands slowly air movement down.
  • The Air Barrier, this often not understood and often deficient assembly reduces the air movement through the Building Envelope. It is made of many materials, but most often defined by when it isn’t there. Notable deficiencies in the air barrier of the buildings account for over half of the heating energy lost to the outdoors.

Spray Foam insulation is a 2 in 1 product, it serves the role as a Thermal barrier and also of the Air barrier. It serves both of these functions beyond the ability of any product on the market. While cost is the next concern on any builders mind, it should be known that life-cycle cost of a building insulated with Spray Foam is significantly less than those insulated with conventional products. This way, the savings in heating and cooling will offset the expense of spray foam, and once being paid off, the building will still be costing less to operate.

Spray Foam Insulation is created by mixing two chemicals in equal proportion, at the right temperatures, at high pressure, applied from a dispensing gun, onsite with sophisticated equipment and trained operators.

The Spray Foam expands and creates a structure of air pockets. This expansion works its way in the building material it is applied to creating the air barrier. The tiny trapped air bubbles that make up the foam give its thermal resistance as a Thermal Barrier.