Spray Foam Insulation Versus Batt Insulation

Batt fiberglass features tightly woven glass strands that come together to create a matrix.

Spray foam insulation versus batt insulation.

Used in roughly 85 of american homes fiberglass insulation is the most common form of home insulation. The big disadvantage with spray foam is cost. For example roll insulation suitable for 2 4 wall and ceiling cavities is about 0 35 to 0 40 per square foot. It can sag and compress over time decreasing its thermal performance.

If it gets wet r value will be decreased. This barrier stops air and moisture from entering one environment to the other indoors to outdoors outdoors to indoors. A poly plastic layer and sealing is needed to provide an air vapour barrier. Back to spray foam facts page.

Fiberglass batt insulation is priced by the roll or by the square foot. An r 15 fiberglass batt actually performs like an r 9. It s hard to perfectly install fiberglass and cellulose. It also takes a lot of energy to manufacture making it less environmentally friendly compared to spray foam.

An r 30 fiberglass batt performs like an r 19. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass. Batt insulation does not have as high of an r value compared to spray foam. Now that you understand the differences between standard and spray foam insulation call today or click here for a free estimate on our services.

The average cost is around 1 per square foot. Any spaces and gaps that aren t filled can equate to the size of a basketball with enough air leakage everyday to fill two air blimps. Unlike spray foam insulation that acts on its own fiberglass batt insulation and poly plastic require one another for the system to be effective. Foam insulation vs standard insulations.

I d blow insulation on the attic floor after air sealing of course. Choose greenguard in winnipeg. Batt fiberglass has been used more extensively than spray foam throughout history and it still holds up as one of the most affordable and reliable options. If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary.

For new builds batt insulation is the more popular choice. Closed cell spray foam insulation cost is 1 25 2 00 per board foot for the material diy. You also get savings by using spray foam insulation because the liquid really seals the attic much more tightly than batt insulation. Fiberglass insulation is significantly cheaper than spray foam insulation but it is also less effective especially in extremely cold conditions.

When the engineer goes to calculate the size of the units that you need to heat and air your building they re able to size them slightly smaller because the units don t have to work so hard.