Loose fill insulation comes in a variety of materials.
Asbestos insulation in my attic.
These are thin visible fibers.
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Zonolite insulation one of the most notorious insulation products that caused asbestos exposure is zonolite insulation which was manufactured by w r.
If you remove or disturb the insulation it is probable that you may inhale some asbestos fibers the degree of health risk depends on how much and how often this occurred.
Asbestos is dangerous because it contains what is known as fibrous crystals.
There is one type of older insulation that has a significant possibility of being contaminated with asbestos.
That is the loose granular insulation called vermiculite.
Asbestos insulation usually looks like a loose gray material and it is also commonly wrapped around the outside of pipes.
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.
Vermiculite insulation alone is not dangerous being a pellet style mineral which expands with higher temperatures.
These fibers consist of millions of microscopic fibrils.
Asbestos can be found in the insulation used in walls attics the materials around plumbing and pipes electrical wiring as well as on heating and air conditioning units.
Step 4 have it analyzed there are a number of labs out there that can analyze asbestos for you.
Asbestos is actually a natural fiber so if your attic insulation looks like wool there is a slight chance that it will contain asbestos.
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.
Vermiculite attic insulation is the main source of concern with asbestos dangers although asbestos is not in every brand.
Asbestos attic insulation photos.
Take a small sample of the insulation and place it into a sealed container.
In addition to building insulation vermiculite is commonly used with gardening for loosening soil.
Asbestos was incorporated in the insulation of different types including attic insulation.
If you notice that you have insulation that is falling apart in your building have a professional inspect for asbestos.
See this article on vermiculite and asbestos for more information.
Fiberglass and cellulose are the most common insulation installed in residential attics today.
Here are selected photos on this topic but full relevance is not guaranteed if you find that some photos violates copyright or have unacceptable properties please inform us about it.
Grace and company in the 1960s and 1970s.