Roof Insulation Life Expectancy

Cellulose insulation can last for decades fiberglass insulation up to 100 years and spray foam could outlast your home.

Roof insulation life expectancy.

Fiberglass insulation can potentially last 80 to 100 years if it is undamaged but bits can start to fall from fiberglass batts after 15 or 20 years. Built up roofing bur. Foam roofs have a life expectancy of 10 to 15 years but can last twice as long if recoated after every five to ten years. Affordability and insulation qualities are major reasons why foam roofing has rapidly become popular in just under 30 years.

Different types of insulations have different life expectancies so you may be able to estimate how long yours will last if you know when it was installed. If kept dry undamaged and away from uv rays all of these insulating materials have a lifespan of 100 years or more effectively the life of the house. For the most part maintaining attic insulation is pretty easy. Housewrap wrap tape and spray foam last 80 or more years while loose fill foamboard cellulose fiberglass rock wool and loose fill all last 100 years or more.