How Often To Add Insulation To Attic

Typically houses in warm weather states should have an r 38 insulation in the attic whereas houses in cold climates should have r 49.

How often to add insulation to attic. You ll know it needs to be replaced if there are insulation leaks or if it is peeling from the walls. Insulation begins to degrade in quality and effectiveness at around the 15 year mark. How often should attic insulation be replaced. In older homes there s a chance your attic insulation has never been replaced and could be badly degraded.

But many homeowners i talk with don t know how much is enough. The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type. Insulation should also be replaced in some cases sooner than 15 years if it is no longer doing its job properly. If you ve never had your insulation checked out before it s time to get it done.

The answer depends on where you live. These insulation levels will keep heated air from migrating out in winter. The higher the r value the better the thermal performance of the insulation. Foam insulation can settle after a year and may need to be replaced to keep it fluffy and insulating properly.

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. Standard insulation starts to degrade and start peeling from walls after about 15 years. How often do i need to replace insulation in my attic. But if you ve got an unfinished attic giving it proper insulation is one of the simplest ways to keep a lid on your heating bill this season.

R value is a measure of insulation s ability to resist heat flow.