Rock Wool Attic Insulation Asbestos

Asbestos while many forms of insulation manufactured prior to the mid 1980s contain asbestos rock wool does not.

Rock wool attic insulation asbestos.

They are used as either fire insulation or heat insulation. 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. Loose fill insulation comes in a variety of materials. 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. These are thin visible fibers. Rock wool manufacturing company incorporated asbestos into mineral wool boards and insulation cement products that were used to help secure pipe insulation. 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.

Raw materials get exposed to temperatures up to 2 750 degrees fahrenheit making it melt. The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation. The material was developed in the 1850s and patented in the u s. Asbestos is a naturally occurring fiber that is mined.

It remained prominent in construction through the 1950s. Select your attic insulation application. Asbestos is dangerous because it contains what is known as fibrous crystals. These fibers consist of millions of microscopic fibrils.

Then fibers are spun from the molten material. Asbestos was incorporated in the insulation of different types including attic insulation. Rock wool is another name for mineral wool insulation. This is in part because it is a man made material that is quite dense and suitable.

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. 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. Rock wool insulation is fabricated from belted basaltic rock and dolomite with binders being added.

Therefore it can be said that rockwool exhibits higher thermal resistance than asbestos.