Spray Foam Attic Insulation Vs Fiberglass

Average cost of spray foam vs fiberglass insulation one board foot 12 x 12 x 1 of open cell foam insulation averages 0 45 to 0 80 cents the same amount of closed cell insulation costs between 1 and 2 a square foot of fiberglass costs between 1 30 and 3 50 on average fiberglass batts cost between 0 65 and 1 20 while a square foot of blown in fiberglass costs between 0 50.

Spray foam attic insulation vs fiberglass.

I d blow insulation on the attic floor after air sealing of course. Open cell spray foam insulation can expand up to 100 times its original size to fill every nook and cranny in the cavity where it is applied. Building pros of course know better. Spray foam insulation drawbacks it is the most expensive option with costs running as high as two or three times as much as fiberglass batts or cellulose loose fill.

Fiberglass insulation vs spray foam insulation comparison. The big disadvantage with spray foam is cost. Fiberglass insulation is significantly cheaper than spray foam insulation but it is also less effective especially in extremely cold conditions. Few construction topics bore homebuyers more than insulation.

Spray foam insulation the foam usually polyurethane is sprayed to fill cracks and gaps in the attic to form a hermetically sealed barrier. Spray foam provides the highest r value while open cell spray foam has about an r value of 2 2 to 3 5 per inch closed cell spray foam has about 6 7 per inch. Synergy home performance explains the differences between traditional fiberglass and spray foam insulation. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.

If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary. Fiberglass cellulose and foam dominate the conversation but the. You re well aware that heating and cooling account for roughly half of the energy used in the average home. Spray foam insulation for both types starts at about 1 50 per square foot and can cost more than 5 00 per square foot when a thick application is applied.

Used in roughly 85 of american homes fiberglass insulation is the most common form of home insulation. Fiberglass installation labor cost is about 1 00 to 2 75 per square foot based on the amount of insulation and the location. For instance a 5 5 inch wall cavity can be filled with 2 inches of foam and an r 13 fiberglass batt as a cost effective system that seals the walls with an r 25 insulation system exceeding u s. Properly mixing and applying spray foam insulation requires substantial expertise and can only be done by trained professionals.