What is Spray Foam Insulation?

What is Spray Foam Insulation?

As many of us know, insulation provides a huge opportunity for energy savings in your home. The Department of Energy suggests that the best way to cost-effectively make your home more comfortable year-round is to add insulation to your attic (including the trap or access door)1. What some of you may not know is that spray foam insulation can offer a significant sound barrier. To test this theory, ARiES Solar completed a sound test at The Oliver Hotel in downtown Knoxville. Spray foam insulation is insulation with expanding properties that fill gaps that traditional fiberglass insulation often fails to fill. There are two types of spray foam insulation: open and closed cell structured insulation. Both create air barriers as well as sound barriers. Closed cell spray foam is generally used on exterior walls and attic spaces because the compact cell structure creates a great moisture barrier and higher R-value. Open cell is generally used on interior walls because a less compact cell structure does not create a good moisture barrier and has a lower R-value. Traditional insulation products can sag and settle, resulting in a reduction in thermal efficiency. Due to the expansive properties of spray foam, the spray foam does not sag or lose its thermal efficiency and adds to the structural integrity of the structure where it is located such as the wall or roof. Working with David Ball, President of Emps, Inc., we conducted a sound test to the ASTM E336-11 Standards that contained a pink noise that tests a full range of frequencies and decibels (dB). The results of our sound test (shown below) proved...