Asbestos Types Of Attic Insulation

Vermiculite is utilized for attic insulation as well as other purposes.

Asbestos types of attic insulation.

Vermiculite attic insulation is the main source of concern with asbestos dangers although asbestos is not in every brand. One of the most notorious insulation products that caused asbestos exposure is zonolite insulation which was manufactured by w r. Zonolite is a type of loose fill insulation made of heat expanded vermiculite and it was installed as attic insulation in millions of american homes. Types of asbestos attic insulation vermiculite insulation usually has a grey or brown coloration and might look like small pebbles or popcorn.

Loose fill insulation comes in a variety of materials. Crocidolite blue asbestos was commonly used to insulate steam engines. Step 4 positive identification of asbestos can only be obtained using polarizing light microscopy which is only available from a laboratory certified by the environmental protection agency. This type of insulation was usually used on steam heating pipes between 1910 and 1980.

It can also be found in insulating board ceiling tiles and thermal insulation products. Types of asbestos insulation in buildings fiber control inc. There asbestos attic insulation in your house 123 tainted insulation a risk in older homes but fund can help reduce asbestos in the attic insulation roofing materialore. The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation.

It was also used in some spray on coatings pipe insulation plastics and cement products. Asbestos is actually a natural fiber so if your attic insulation looks like wool there is a slight chance that it will contain asbestos. How to identify dangerous asbestos insulation. There isn t necessarily a surefire way to tell if your insulation has asbestos unless it s labeled or you have an expert take a look.

The insulation was sold under the brand name zonolite. Vermiculite insulation alone is not dangerous being a pellet style mineral which expands with higher temperatures. In addition to building insulation vermiculite is commonly used with gardening for loosening soil. Grace and company in the 1960s and 1970s.

Amosite brown asbestos was used most frequently in cement sheets and pipe insulation. It is known to be very dangerous and if suspected to be present in a house it is recommended to limit exposure and have a sample of it tested by a certified laboratory. There are many different kinds of wool like insulation that are man made and do not have asbestos but if your attic insulation looks like wool than it is best to be safe and have it tested by a professional. Asbestos insulation can also look like a cardboard covering.

The primary source of asbestos attic insulation is from a specific mine in montana operated for 70 years by the libby company according to the environmental protection agency.