Spray Foam Myths and Misconceptions

Dispelling Spray Foam Myths

This brief article is an attempt to dispel some of the most typical spray foam myths and rumours. Here are five of the most common spray foam myths and misconceptions.

Myth #1 – Spray Foam Insulation is toxic

Although Spray Foam is hazardous during installation the ‘Off-gas’ period is within 24 hours of application and after this time the product will be chemically inert with no odor.

Myth #2 – Spray Foam Insulation is not green

New generation polyurethane foams are made with renewable and recyclable resource materials adding to its sustainability through a safer product. Using spray foam results in a more thermally efficient building requiring less heating/cooling energy and thus reducing carbon emissions. The foam also reduces transportation costs due to its form as it experiences an exothermic reaction multiplying the end use product.

Myth #3 – Roofing Spray Foam Insulation is expensive

A Spray Foam roof can actually costs less than a typical BUR or single ply roof whilst providing an R-Value at the same time. All BUR, EPDM and Asphalt roofs are all oil based product and rising oil prices are driving the cost up while the cost of foam roofing has remained more constant.

Myth #4 – Spray Foam Insulation is a new product

Flexible polyurethane foam began in 1954. By the late 60’s and 70’s spray foam evolved in to insulating and roofing applications.

Myths of Spray Foam #5 – Foam boards insulate as well as spray foam

Rigid insulation boards do not provide a complete air/vapour seal. Foam boards not only have a lower R-Value than closed cell 2lb spray foam but also lose much of their insulating ability due to poor air seal ability.