Many people have asked me if spray foam insulation is better than liquid insulation material and fiberglass. The answer is that foam insulation is widely used around the world. Spray foam insulation was not that popular till few years back but now it is used by many home owners around the world. In fact, spray foam insulation is great material for most homes.
No home insulation product is better than spray foam. This material can seal a home from air and moisture and thus strengthen the home and increase its life. It also protects molds and several pollutants. It also saves utility bills.
PS: It may sound that spray foam insulation is a DIY project but it actually needs some prior experience and some special equipment to do the job. Spraying exact quantity of foam is also very important for proper insulation.
Benefits of Spray Foam Insulation
- Spray foam insulation adds strength to a home and increases its life.
- It protects a home from molds and several pollutants.
- It protects a home from air, dust and moisture.
- It saves energy bills.
- Most foam insulation is permanent.
Choosing Spray Foam Insulation Product / Material
When buying a foam insulation material don’t compare it with fiberglass. You need to focus on R-value of the material.
R-value is nothing but capacity of the insulating material to resist the flow of heat. The higher the R-value, the greater will be the resistance to flow of heat. Keep in mind that wall stud has no role in insulation. You can install any wall stud according to your requirement. The walls of your home may have cavities and it not necessary to fill these cavities with foam insulation.
Keep in mind the most good quality foam insulation is more expensive than fiberglass or cellulose insulation. Calculate the required R-value carefully before buying the material. You need R-value greater than fiberglass or cellulose otherwise it makes no sense to invest more money in foam insulation. But increased R-value is no guarantee of satisfactory insulation. The heat gain and heat loss may not be as per your expectations. It is better to consult and take opinion and tips from a home insulation contractor or a HVAC contractor. He can easily calculate the required R-values for different walls of your home.
Installing Spray Foam Insulation
As I have mentioned above, spray foam insulation is not a DIY project. It needs some prior experience in the job and some special equipment. It is better to hire a contractor for the job. However, I can give some tips for spray foam insulation:
- R-Value: In order to cut down the heating and cooling costs, it is important to increase the R-value of the insulation.
- Foam Insulation in the Attic: Spray the foam directly to the underside of a roof to keep the attic space comfortable. Get open-cell foam for the attic. This will allow free movement of any water vapor.
- Foam insulation on Asphalt Shingles Roof: Foam insulating material can cause damage to asphalt shingles. Try to spray the foam to the underside of the roof.
- Leave space for ventilation.