Brown Insulation In Attic Asbestos

Loose fill insulation is designed to be poured onto attic floors or blown into hollow spaces inside walls and other building structures.

Brown insulation in attic asbestos.

Tremolite is similar to asbestos. Brown insulation is made up of mineral wool which comes from either rock natural materials or slag the scum on the surface of molten metal. 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. Although asbestos is currently banned as an insulating material in many countries buildings that were built before 1980 may still contain insulation with asbestos.

Your home was constructed prior to 1990. About 70 of u s. Loose fill insulation could contain asbestos if. Vermiculite attic insulation originated from the libby mine while 30 came from other sources.

A common form of asbestos insulation found in older buildings is an asbestos based corrugated paper insulating wrap used on pipes. How do i know if there is vermiculite insulation in my home. The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation. If you have damaged insulation you plan to remodel your building or you suspect your insulation may contain asbestos you need to contact an asbestos professional that is.

Its stone like pieces vary in size and range in color from gray brown to silver gold. Loose fill wrap block and spray on. If your insulation contains particles that have a silver gold or gray brown color it may contain asbestos. Vermiculite attic insulation is a pebble like pour in product and is usually light brown gray or gold in color.

Concerns about asbestos contaminated vermiculite insulation a mine near libby montana was the source of over 70 percent of all vermiculite sold in the united states from 1919 to 1990. Department of energy notes that 75 percent of mineral wool is derived from post industrial content. What does asbestos insulation look like on or around pipes. Asbestos containing thermal insulation can be grouped into four major categories.

Another indicator is the referenced particles also have an accordion like look or texture. If you encounter vermiculite insulation the epa recommends that you assume it contains asbestos and take appropriate precautions. Also see asbestos fireproofing spray on. See details about actual building insulation made of or contaminated with asbestos discussed at asbestos building insulation.

Types of asbestos insulation. Finally you may have attic insulation containing asbestos if it lies flat in the joist cavities and does not puff up like snow. Because zonolite had been contaminated with tremolite it resulted in being a health hazard. Vermiculite insulation is often found in attics.

There is no known safe level of asbestos exposure. There was also a deposit of asbestos at that mine so the vermiculite from libby was contaminated with asbestos. Insulation comes in a variety of colors. Go to top.