Finished Attic With Vermiculite

I live in maryland and want to retrofit my house built in 1938.

Finished attic with vermiculite.

Vermiculite is a natural insulation material but it s one that you definitely don t want to have in your attic. Vermiculite was a common attic insulation product sold from the late 1920s to the early 1990s. The epa says that vermiculite insulation which is the pebbly stuff found in attics of many older homes is only risky if it contains more than one percent asbestos. The space between the gables.

Homeowners and buyers often want to know if they should leave the. My attic has vermiculite so i have to assume there is asbestos. So we did that but incompletely. When this mineral is put in an oven it expands like popcorn.

Came from a mine in libby montana sold under the name zonolite. Expanded forms of vermiculite are light weight fire resistant and odorless making it an ideal material used for attic and wall insulation inside houses and buildings. If your home was built before 1990 you might have vermiculite insulation in your walls or attic. Vermiculite is a naturally occurring mineral that when heated to a high temperature expands to as much as 8 to 30 times its original size.

Up to 85 percent of all vermiculite insulation in the u s. Five years ago we decided to insulate the attic and the recommendation we heard sounded good that it was best to lay fiberglass over it. It could be purchased locally and could be installed by contractor or homeowner. I m focusing on the attic.

Hi i m back with another question. That s good news because most zonolite a type of vermiculite insulation falls into that category.