Asbestos Types Of Attic Insulation

Asbestos insulation can also look like a cardboard covering.

Asbestos types of attic insulation.

Treat any insulation as if it is asbestos if you re unsure. This type of insulation was usually used on steam heating pipes between 1910 and 1980. Grace and company in the 1960s and 1970s. 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.

Amosite brown asbestos was used most frequently in cement sheets and pipe insulation. It was also used in some spray on coatings pipe insulation plastics and cement products. How to identify dangerous asbestos insulation. Vermiculite insulation alone is not dangerous being a pellet style mineral which expands with higher temperatures.

The insulation was sold under the brand name zonolite. Asbestos can be present in almost any type of insulation and can look very different than you may expect. Crocidolite blue asbestos was commonly used to insulate steam engines. The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation.

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

Asbestos is actually a natural fiber so if your attic insulation looks like wool there is a slight chance that it will contain asbestos. Types of asbestos attic insulation vermiculite insulation usually has a grey or brown coloration and might look like small pebbles or popcorn. Types of asbestos insulation in buildings fiber control inc. Loose fill insulation comes in a variety of materials.

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. One of the most notorious insulation products that caused asbestos exposure is zonolite insulation which was manufactured by w r. It can also be found in insulating board ceiling tiles and thermal insulation products. 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.

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.