Have you ever sat if your home, with the heat on, and felt a blast of cold air? Well, there is a good chance that your home may not be as tight as it could be. Fear not, there is a method to determine how tight your home is, and if it’s not as tight as you’d like, you can use spray foam insulation to help tighten it up.
You can figure out how lose or tight your home is by having a blower door test performed in your home. This test is performed by using a calibrated fan to determine the air infiltration rate of a building. The test lets homeowners know how many air exchanges per hour that they can expect to see in their homes. The scale is on a 0 to 1 lay out with 1 signifying a very drafty home and 0 signifying a very tight home. Older homes typically see around 1.0 air change per hour. This means that the air inside of the home is replaced by air from outside of the home approximately every hour. This amount of air exchange tends to signify a drafty house, which leads to high energy bills because the HVAC unit is working twice as hard to keep the home cool or warm.
On the contrary, homes that have been insulated with spray foam insulation falls in a range of .10 to 0.2 air changes per hour. This means that the air inside of these homes is being replaced every five to 10 hours. By exchanging air at this rate, there is a substantial reduction in the use of your HVAC to heat and/or cool your home and there is an increased amount of comfort inside of your home. Homeowners of preexisting homes can make there homes tighter, which will help reduce the amount of energy they consume and increase the comfort inside of their homes. These homeowners can have a certified spray foam installer apply spray foam insulation to their rim joists, crawl spaces, and attics. Just these small additions will have a significant impact on your wallet and your comfort level.