How Long Does Roof Insulation Last

Unfortunately insulation doesn t last and perform effectively for years and years.

How long does roof insulation last.

Most modern insulation materials are built to last up to 100 years. Like everything in your home insulation is only designed to last for so long. Polyisocyanurate is the most effective flat roof insulation material on the market today. How long does roof last expectancy depends on a number of factors wood shake roofs about 30 years fiber cement shingles last for 25 years while asphalt shingles roofs last about 20 years.

5 8 2017 4 00 am. Batt insulation fiberglass or cellulose tends to fall down from crawl spaces or ceilings starting 15 to 20 years after installation. Water damage from roof leaks can degrade the insulation and break it down faster. These insulation sheets are crafted from foam and layered between organic and non organic felt.

Roof leaks can cause insulation degradation over time as forming mold can corrode the exterior and interior of insulation. Puncturing the insulation will decrease its effectiveness. The majority of insulation products can last between around 80 to 100 years which is definitely impressive. How long does insulation last.

Modern homes are well insulated and more energy efficient than homes built even a decade ago. The potential lifespan of insulation may be quite surprising and it certainly beats the toaster. When service life is included in the terms of a fiberglass. Insulation can last that long but it normally doesn t.

It starts with how old your insulation is. Batt insulation such as cellulose or fiberglass can fall down from. Do a little research online and you ll find sites that claim insulation can last for 100 years or more. Glasswool insulation also known as fiberglass is the most commonly used insulating material and should last the lifetime of your home.

And depending on when it was made it might not be as effective as newer products on the market today. A century of service. Homes that were built more than 10 years ago may not be up to the latest insulation standards so unless your house was recently built or you ve replaced your insulation within the last 10 years or so there s a good chance your home is not properly insulated. Additionally any punctured surfaces can render an entire length of insulation ineffective.

Knauf brand provides a warranty of 50 years on its earthwool range and bradford provides a 70 year warranty across a number of ceiling wall and floor products. The expected service life of fiberglass insulation under ideal conditions is usually stated as 100 years. If mold forms on the insulation it will not remain effective. While it is true that newer insulation can last for quite a long time many homes are not equipped with modern insulation.

If you just moved into a newly built house two years ago you are most likely good to go.