Spray foam insulation, or spray polyurethane foam (SPF), is a viable and sustainable insulation option for homes and commercial buildings. It has become the “green solution” of choice for many architectural designers, builders and homeowners due to its numerous energy saving benefits. When installed correctly, it can provide some of the highest R values per inch available. For those looking to install spray foam on the underside of the roof covering, there are some general rules to follow.
Closed-cell spray foam must be at least 1 or 1.5 inches thick to act as an air barrier, while open-cell spray foam must be between 3.0 and 5.5 inches thick to act as an air barrier. Hydrofluoroolefin (HFO) expanding agents are the next generation of chemicals for industry, and Canada is one of the countries that offer medium-density closed-cell spray foam made with this agent. The effectiveness of spray foam insulation can be seen in everyday items like Igloo coolers, which contain only about 1 inch of spray foam and can keep temperatures cool for days. Homes insulated with spray foam are airtight and comfortable when done correctly.
Closed-cell spray foam is also suitable for basements and mezzanines where there can be moisture and humidity, as it rapidly expands to fill all cracks, crevices, voids and voids found in wall, floor and ceiling systems. When installing spray foam insulation in your home, it is important to consult a professional to ensure it is done correctly. Professional installation eliminates any worry of toxic chemical fumes being released into your home, as they are not present in the spray foam insulation itself. Spray foam insulation has become increasingly popular in recent years due to its numerous energy saving benefits. It is a viable and sustainable insulation option for homes and commercial buildings that can provide airtightness, thermal control layers, and high R values per inch when installed correctly.
