Spray Foam InsulationSpray Foam Insulation
Spray foam insulation is the premium insulation choice that reduces energy bills and improves comfort in residential and commercial buildings. It is installed in basement rim joists, crawl spaces, attics, overhangs, knee walls and bonus rooms where air leakage occurs and the building envelope can be strengthened. Spray foam insulation comes in 2 types – open and closed cell – with open-cell providing higher R-value per inch, while close-cell adds strength to the wall, roof and floor assemblies.URL:foamexpertgroup.com
The benefits of spray foam are significant and long-term, reducing energy usage for heating and cooling and providing cost savings to owners and tenants alike. The foam creates a tight seal that significantly minimizes air leakage, which in turn dramatically lowers heating and cooling costs. It also reduces noise and can help alleviate allergy symptoms, allowing homeowners to enjoy spring without runny noses or antihistamines.
The Science Behind Spray Foam Insulation: How It Works
The installation process starts with the removal of existing insulation in the areas to be insulated. Once the building is ready for spray foam, it is sprayed into place with a special gun that uses a chemical propellant to expand the foam and fill the gaps and crevices. Spray foam is usually sprayed at a thickness of between 2-6 inches, depending on the application.
When applied incorrectly, spray foam insulation can shrink and pull away from structural framing and walls/ roof resulting in cracks or excessive gaps. These are not only unsightly, but can compromise the integrity of the spray foam and contribute to moisture condensation problems in colder climates. This is why the Royal Institution of Chartered Surveyors has been campaigning for a licensing and regulation of the spray foam insulation industry to cover installation, training and qualifications, effective audit and review procedures, and supplier accreditation.
Foam Expert Group
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