How Long Does Attic Insulation Last

When service life is included in the terms of a fiberglass insulation.

How long does attic insulation last. Blown in insulation made from cellulose or mineral wool this type of insulation will also last as long as 100 years but is prone to settling and compacting. 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. It is also often used as a home to rodents that can leave it ineffective and damp.

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. Do a little research online and you ll find sites that claim insulation can last for 100 years or more. Unfortunately insulation doesn t last and perform effectively for years and years. It starts with how old your insulation is.

But if you can t afford to shell out a few hundred bucks for this service never fear. A century of service the expected service life of fiberglass insulation under ideal conditions is usually stated as 100 years. While it is true that newer insulation can last for quite a long time many homes are not equipped with modern insulation. Attic insulation option no 3.

Several factors determine how long blown in attic insulation will last perhaps you have seen information online that states attic insulation can last up to 100 years. The international association of certified home inspectors states batt loose fill fiberglass and cellulose insulation can all provide 100 years of warmth. 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. Modern homes are well insulated and more energy efficient than homes built even a decade ago.

Insulation that gets dirty or logged with dust will be less effective. Loose fill insulation may settle over time leading to air leaks. According to home advisor insulating your attic can cost between 1700 to. If you just moved into a newly built house two years ago you are most likely good to go.

While that sounds impressive it is important to understand that several unique factors about your home and attic determine the longevity of insulation in your attic. We ve rounded up all the most important know how about attic insulation costs products prep work and installation right here. Batt insulation fiberglass or cellulose tends to fall down from crawl spaces or ceilings starting 15 to 20 years after installation.