How Often Should You Change Your Roof Insulation

Sometimes simply resetting the insulation fixes the problem but oftentimes it requires replacement.

How often should you change your roof insulation.

This is an updated version of a story originally posted on oct. If you have an older home chances are the attic insulation is the same insulation that was installed when the house was built. An average roof needs to be replaced after 15 50 years depending on the material used ventilation and climate factors like humidity heat and cold. Have you noticed your gas or electric bills creeping up every year.

Higher energy bills than usual. Insulation should also be replaced in some cases sooner than 15 years if it is no longer doing its job properly. Galvalume or metal roofing materials have an estimated lifespan of 30 to 45 years and concrete tile generally lasts between 30 and 50 years. Often these temperature changes signify shifted or rotted insulation in the attic letting ambient air into your home.

Foam insulation can settle after a year and may need to be replaced to keep it fluffy and insulating properly. You should get a roofing contractor to perform a roof inspection every year to see what condition your roof is in and tell you if it needs to be replaced. Standard insulation starts to degrade and start peeling from walls after about 15 years. Most roofs with asphalt shingles will last an estimated 15 to 20 years.

You can expect architectural asphalt shingles to last a bit longer at an average of 25 to 30 years.