Finished Attic With Vermiculite

If your home was built before 1990 you might have vermiculite insulation in your walls or attic.

Finished attic with vermiculite.

That s good news because most zonolite a type of vermiculite insulation falls into that category. 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. I live in maryland and want to retrofit my house built in 1938.

Hi i m back with another question. Vermiculite is a natural insulation material but it s one that you definitely don t want to have in your attic. So we did that but incompletely. The space between the gables.

It could be purchased locally and could be installed by contractor or homeowner. Came from a mine in libby montana sold under the name zonolite. Unfortunately almost all vermiculite insulation contains asbestos and is unsafe when disturbed. 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.

My attic has vermiculite so i have to assume there is asbestos. 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. I m focusing on the attic. Up to 85 percent of all vermiculite insulation in the u s.

When this mineral is put in an oven it expands like popcorn. Vermiculite is a mineral that was used for insulation.