Rockwool Attic Insulation Asbestos

Rock wool is another name for mineral wool insulation.

Rockwool attic insulation asbestos.

Select your attic insulation application. And this material also called rock wool or in some texts slag wool insulation remained in popular use in the u s. This is in part because it is a man made material that is quite dense and. Rock wool manufacturing company incorporated asbestos into mineral wool boards and insulation cement products that were used to help secure pipe insulation.

Mineral wool insulation developed in the 1850 s patented in 1875 in the u s. Asbestos is a fiberous form of silica and traces of material that appear similar to asbestos under. Vermiculite insulation alone is not dangerous being a pellet style mineral which expands with higher temperatures. The material was developed in the 1850s and patented in the u s.

Older forms of rockwool insulation are composed of fiberglass mineral wool and could contain asbestos. Loose fill insulation comes in a variety of materials. Rock wool is a silica based stranded insulation very similar to fiberglass. Asbestos is a naturally occurring fiber that is mined.

Since mineral wool is a man made fiber it does not contain asbestos. If your attic or wall insulation is in batt or blanket form whether it s fiberglass cellulose or another material you generally don t have to be concerned about asbestos. While many forms of insulation manufactured prior to the mid 1980s contain asbestos rock wool does not. Homes built after 1960 that contain rockwool insulation most likely do not have asbestos.

Up to the 1950 s and is still in use today 2008 in some new construction in manufactured housing and in special applications such as the insulation. Rock wool s history with asbestos. Use rockwool thermal stone wool insulation to insulate the attic of a new build extension or to increase the r value and top up the current attic insulation especially in an older home. Vermiculite attic insulation is the main source of concern with asbestos dangers although asbestos is not in every brand.

I ve read about mineral wool asbestos and resins mixed together to manufacture a couple specific industrial insulating products but it s not likely the kind of stuff used for residential insulation.