Spray Polyurethane Foam

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Spray Polyurethane Foam

Polyurethane spray foam is widely advertised as an environmentally friendly building material due to its ability to improve energy efficiency. It insulates better per inch than fiber or cellulose, which can result in significant energy savings in heating and cooling. Spray insulation with polyurethane foam is a modern technology for insulating and sealing buildings. High efficiency and easy application of spray insulation make it a popular way to insulate your house or loft.

SPF - The Ideal Insulation Material for Your Building

Seams and transitions are the main causes of leaks in roof systems, but SPF addresses this vulnerability. Since the SPF mixture is used as a liquid, it can fill gaps, seams, and cracks in the existing roof and substrate. By using polyurethane foam, the contractor can level the roof to reduce the risk of water retention. The foam material can expand and contract in a building depending on the outside temperature while reducing the likelihood of cracks and crevices. SPF is often used as the only cavity insulation in many frame designs. 

Most foam materials are moisture-resistant, and unlike fibre insulation, they are not moisture sensitive. In addition, the sun protection factor increases during installation in order to seal cracks and crevices in the building envelope. 

By properly sealing windows and doors, SPF can provide a complete air barrier system for most buildings. Fibrous insulation is naturally breathable and requires the installation of an additional air barrier, which achieves the same performance as the sun protection factor. Polyurethane foam insulation is not considered a food source for mould. 

The use of polyurethane as insulation eliminates condensation surfaces and reduces the risk of moisture accumulation. 

Other types of insulation are less effective at controlling air infiltration and providing sufficient insulation to remove condensation surfaces, which can increase the likelihood of mould-prone environments.


  • Air bubbles make SPF extremely energy-efficient; studies have shown that foam roofs often lead to energy savings of 30% or more compared to other roof systems. 
  • Another study by Oakridge National Laboratories found that good insulation can lower your cooling and heating costs by 50%.