Are you tired of paying high energy bills? Do you have to keep your HVAC systems running for long hours before you attain the optimal room temperature? If yes, then why not get the best and cost-effective means of keeping your home insulated and enjoy big energy savings like never before?
For this, consider foam insulation. Also known as spray polyurethane foam, this is a technique thati s commonly used to insulate homes and attics.
What is Foam Insulation?
Foam insulation is basically a spray-applied plastic, made by mixing unique liquid components that rapidly expand upon contact to create foam. The foam created helps:
Seal gaps/air leakage through walls and roofs
Form vapor and moisture barriers
Resist heat loss/ transfer
Effectively reduce unwanted air-infiltration through joints, seams and cracks
Types of Foam Insulation
Foam insulation can be divided into two types:
Open cell foam has an insulation value of up to 3.5 per inch. It has higher-moisture vapor permeability as compared to closed cell foam and forms an air barrier at full-wall thickness. It is low-density and used for applications like interior cavity-fills and unvented attics.
In comparison to open cell, closed cell foam has higher insulation value, greater than 6 per inch. It has high strength and rigidity, is resistant to water and absorbs sound very well. It also has medium density and is best used for applications like continuous insulation, interior-cavity fill and roofing applications.
When perfectly installed, either type of spray polyurethane foam insulation will act as a great air-barrier for sealing off attic bypasses.
Spray foam insulation is overall, a cost-effective alternative to insulating homes and eliminating convection which is the leading cause of heat loss in homes. Once you insulate your home with a spray foam, you no longer have to run your HVAC systems for hours to attain your ideal room temperature.
How Is It Applied?
Spray foam is applied either using the low pressure delivery systems or the high pressure delivery systems. Low pressure 250psi 2 component systems are used to seal small and midsized areas like crawl spaces, attics and rim-joists. However, to insulate large areas like roofing and walls, spray foam high pressure systems of 800 to 1600psi are generally used.
Please note; spray foam insulation is not DIY friendly. You must hire an experienced professional for this job!