Rock Wool Attic Insulation Asbestos

They are used as either fire insulation or heat insulation.

Rock wool attic insulation asbestos.

It remained prominent in construction through the 1950s. Rock wool insulation is fabricated from belted basaltic rock and dolomite with binders being added. Select your attic insulation application. This is in part because it is a man made material that is quite dense and suitable.

Rock wool manufacturing company incorporated asbestos into mineral wool boards and insulation cement products that were used to help secure pipe insulation. Asbestos is a naturally occurring fiber that is mined. In fact rockwool and asbestos can resist the heat up to 1 240 and 600 degree celsius respectively. 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.

Rock wool is a silica based stranded insulation very similar to fiberglass. Raw materials get exposed to temperatures up to 2 750 degrees fahrenheit making it melt. Asbestos while many forms of insulation manufactured prior to the mid 1980s contain asbestos rock wool does not. It is common for rock wool to be found as a woven insulation batt or loose insulation.

Rockwool and asbestos have exhibit ability to resist the fire. Asbestos is a fiberous form of silica and traces of material that appear similar to asbestos under. At mineral wool rock wool insulation there were some mineral wool products that deliberately combined asbestos such as layers of asbestos paper with mineral wool and other inventors experimented with combining other fibers such as flax with mineral wool to reduce its tendency to settle in vertical installations such as wall cavities. The material was developed in the 1850s and patented in the u s.

Asbestos was incorporated in the insulation of different types including attic insulation. Rock wool is another name for mineral wool insulation. 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. Since mineral wool is a man made fiber it does not contain asbestos.

Asbestos is dangerous because it contains what is known as fibrous crystals. The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation. These are thin visible fibers. Loose fill insulation comes in a variety of materials.

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.