How Long Does Fiberglass Insulation In The Attic Last

Gold star insulation can replace your old insulation with new fiberglass cellulose spray foam denim or radiant barrier.

How long does fiberglass insulation in the attic last.

Contact us to learn more about insulation removal and our insulation installation services. While it is true that newer insulation can last for quite a long time many homes are not equipped with modern insulation. And we all know our homes are rarely perfect. How often do i need to replace insulation in my attic.

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. Standard insulation starts to degrade and start peeling from walls after about 15 years. Installing new insulation or upgrading existing insulation is a sizeable project so it is natural to want to know how long the blown in cellulose insulation will last. You do not need to use as much as you do cellulose which can affect the cost.

The international association of certified home inspectors states batt loose fill fiberglass and cellulose insulation can all provide 100 years of warmth. 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. Blown in cellulose insulation will last anywhere from 20 to 30 years under ideal conditions. Fiberglass insulation typically lasts from 30 to 50 years.

At the same time cellulose loose fill foamboard loose fill and rock wool insulation can last up to 100 years. But this is in perfect conditions. The expected service life of fiberglass insulation under ideal conditions is usually stated as 100 years. With new insulation installed you can save money and live more comfortably this winter and all year long.

Recommended attic insulation ranges from r30 to r60 for an uninsulated attic depending on the zone. If you are looking for a longer term solution that does not require blowing in insulation again fiberglass is the better choice. The r value of insulation for your home depends on where you live. Do a little research online and you ll find sites that claim insulation can last for 100 years or more.

If you have an older home chances are the attic insulation is the same insulation that was installed when the house was built. 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. Often homeowners purchase a property with old insulation. Government has published a map of the united states with recommended r values for eight different climate zones.

When this happens their estimation of their insulation s lifespan may be. When service life is included in the terms of a fiberglass.