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A simple yet effective solution

Spray polyurethane foam insulation has been steadily rising in popularity since it first emerged on the market in 1979. With its exceptional sustainability characteristics and an array of other benefits, these foams are known to help save energy, resist moisture, act as an air barrier, protect the substrate against damage from inclement weather, and they are easy to install.  

There are two general categories of SPF insulation materials: open-cell and closed-cell. Both foam categories provide excellent insulation and air sealing, but there are some inherent differences that will help contractors determine which product should be used for a particular job.

While open-cell spray foam has an open-cell structure in which the cells are filled with air, closed-cell spray foam has a closed-cell structure, which yields a rigid, hard foam. This makeup has proven to provide excellent structural enhancement in certain framed buildings. The smaller cells trap an insulating gas, called a blowing agent, which increases the R-value. Typical R-value per inch of closed-cell foam ranges from R5.8 to R6.5 per inch, making it a great choice in applications where clearance is limited. Closed-cell SPF also acts as an air/vapour barrier and it is water-resistant—meaning it can be used where contact with water is likely (i.e. below-grade concrete walls, in contact with the ground, or on exterior side of the building envelope).


From leading manufacturer SOPREMA, comes SOPRA-SPF +, a two-component polyurethane foam with a closed-cell structure. This high-quality product is designed for interior and exterior insulation applications, whether commercial, industrial, or residential.

SOPREMA is the first company that is SCC-accredited for its training without being affiliated to an association. SOPRA-SPF + can only be applied by trained and approved installers according to the ISO 17024 Quality Assurance Program, which certifies polyurethane foam applicators in accordance with the CAN/ULC S705.2 standard.

Main benefits:
  • The product has a superior R-value per inch (R-value = 6), according to the LTTR (Long Term Thermal Resistance) value. Thus, a lower thickness of the product is required to achieve the same R-value as other types of insulating material. 
  • Air leaks are common in building envelopes and can lead to many problems, including condensation, humidity, mildew and lower air quality inside the building. The monolithic shape of SOPRA-SPF + correctly fills all cavities, leaving no voids in the insulation or around it, which prevents these problems from arising.
  • Energy losses caused by air leaks from a poorly insulated building can represent a high percentage of heating and cooling costs. Both in summer and winter, spray foam insulation helps regulate the inside building temperature.
  • Installing spray foam insulation is simple and does not require much handling with its very high coverage rate, compared with products that have the same classification on the market.
  • The product adherence has been tested successfully on most building surfaces, such as masonry, concrete, wood, and gypsum, and also on SOPRASEAL waterproofing membranes and tapes.
  • The use of spray polyurethane can contribute to obtaining LEED credits in the following categories: Energy and Atmosphere; Innovation and Design Process; Materials and Resources; Indoor Environmental Quality.

To find out more, please visit: http://www.soprema.ca/brochures/sopra-spf/.

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