How Often Should You Add Insulation To Your Attic

Attic floor insulation works as the main barrier to prevent heat from escaping when it spreads to the attic through a process called thermal flow.

How often should you add insulation to your attic.

Blown in insulation overview. How much does attic insulation cost. It s a diy project you can tackle in a weekend and the savings you ll get add up every year says toh general contractor tom silva. The higher the r value the better the thermal performance of the insulation.

While some insulation is built to last years there are times when you need to replace your insulation or add on more insulation to it. How often do i need to replace insulation in my attic. If you have an older home chances are the attic insulation is the same insulation that was installed when the house was built. It may also qualify you for rebates with your utility company but before making that call hvac experts recommend looking at exposed insulation in your attic.

R value is a measure of insulation s ability to resist heat flow. If your insulation doesn t measure up and you need more installation can be done as a weekend diy project or you can call a professional installer to handle the job. Insulation levels are specified by r value. The pros charge 1 500 to 2 000 to do a 1 200 sq ft.

Foam insulation can settle after a year and may need to be replaced to keep it fluffy and insulating properly. Insulation should also be replaced in some cases sooner than 15 years if it is no longer doing its job properly. If you need to add insulation in your attic save big by blowing in cellulose insulation yourself. Standard insulation starts to degrade and start peeling from walls after about 15 years.

You can do it yourself for about 500. You ll know it needs to be replaced if there are insulation leaks or if it is peeling from the walls.