Attic Insulation Useful Life

Insulation blanket 24 a insulation molded 20 a insulation 25 e insulation wall 50 h insulation attic wall floor bandjoist basement crawlspace.

Attic insulation useful life. Equipment expected useful life 357 category improvement expected useful life years source data quality low flowshowerhead 10 e. Cellulose insulation can last for decades fiberglass insulation up to 100 years and spray foam could outlast your home. Pros and cons each type of insulating material has its pros and cons. A century of service the.

I read everywhere that cellulose unlike fiberglass breaks down over its useful life but nowhere can i find where it specifies what the useful life is or why. 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. When proper installation procedures are observed and the insulation is maintained according to manufacturer s recommendations fiberglass has a long useful service life. Each era of electrical wiring has a different expected life and he earliest type still around in a few older houses is knob and tube.

So it s time to pay close attention to what s happening up there. Foam insulation is generally a polyurethane product and much of it is sprayed on surfaces or injected into walls. In my experience i would like some input on why that might be. For the most part maintaining attic insulation is pretty easy.

Its role is growing in improving the quality of life inside older homes as well. So insulation is the determining factor in wiring life expectancy. Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer. In energy auditing the useful life of blown in insulation both fiberglass and celulose is typically estimated to be 15 years.

My common sense is telling me it should be much longer.