How Long Does Fiberglass Insulation In The Attic Last

R25 to r49 for an attic with 3 4 of existing insulation.

How long does fiberglass insulation in the attic last.

The international association of certified home inspectors states batt loose fill fiberglass and cellulose insulation can all provide 100 years of warmth. A century of service. Blown in cellulose insulation will last anywhere from 20 to 30 years under ideal conditions. You do not need to use as much as you do cellulose which can affect the cost.

Contact us to learn more about insulation removal and our insulation installation services. 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. When this happens their estimation of their insulation s lifespan may be. Standard insulation starts to degrade and start peeling from walls after about 15 years.

But before you dismiss the need to replace your insulation these life spans are all for ideal conditions only and your home may have less than ideal conditions for keeping your insulation in top shape. And we all know our homes are rarely perfect. This might seem like a long time but many homeowners neglect their property s history. Do a little research online and you ll find sites that claim insulation can last for 100 years or more.

Fiberglass insulation typically lasts from 30 to 50 years. Government has published a map of the united states with recommended r values for eight different climate zones. Often homeowners purchase a property with old insulation. How often do i need to replace insulation in my attic.

Gold star insulation can replace your old insulation with new fiberglass cellulose spray foam denim or radiant barrier. 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. While it is true that newer insulation can last for quite a long time many homes are not equipped with modern insulation. The r value of insulation for your home depends on where you live.

But this is in perfect conditions. The expected service life of fiberglass insulation under ideal conditions is usually stated as 100 years. If you are looking for a longer term solution that does not require blowing in insulation again fiberglass is the better choice. With new insulation installed you can save money and live more comfortably this winter and all year long.

When service life is included in the terms of a fiberglass. At the same time cellulose loose fill foamboard loose fill and rock wool insulation can last up to 100 years.