Spray foam insulation is increasing in popularity over fiberglass insulation. Here’s a few reasons why:
Fiberglass insulation does not stop all air from flowing through it. More than 30% of heat or air conditioning escapes fiberglass insulation! On the other hand, spray foam insulation expands to 100 times its original volume. Therefore, it is far superior at keeping in heated air or air conditioning.
Regular insulation needs to be replaced if it gets wet. However, spray foam insulation retains its properties even if exposed to water.
The R-value is a home’s resistance to heat flow. Most homes should try and achieve an R value of 38. You need much less spray foam insulation to achieve this R-value, since spray foam Spray foam insulation has a value of 6 per inch, whilst fiberglass only has an R-value of 2 per inch.
Fiberglass insulation deteriorates over time, but spray foam insulation will last a lifetime!