Brown Loose Fill Asbestos Insulation

However 70 of the vermiculite insulation sold from 1919 to 1990 came from a single mine that also contained asbestos.
Brown loose fill asbestos insulation. Keep an eye out for light fluffy fibers that are used as insulation. If this sounds like what you have it is likely rock wool a mineral based loose fill. Here are some signs to look for that indicate your loose fill insulation may be contaminated with asbestos. Your house was constructed prior to 1990 the particles of insulation have a particular color.
Rock wool insulation is fabricated from belted basaltic rock and dolomite with binders being added. Department of energy notes that 75 percent of mineral wool is derived from post industrial content. Always let a professional remove your asbestos attic insulation. Asbestos insulation found in buildings.
Vermiculite looks very similar to popcorn or and is usually brownish greyish in colour with some metallic colours mixed in. Vermiculite like asbestos is a naturally occurring mineral. As longer twisted ropy loose fill insulation or as insulating batts such as the gold bond rock wool insulating batt shown in our photograph. It is commonly found in fiber bundles with a cotton style look.
Zonolite was often a gold silver or a brown gray in appearance. If this sounds like what you have it is likely rock wool a mineral based loose fill. Unlike asbestos vermiculite is not known to be harmful. It is made from a natural mineral material that is mined from the earth.
Any disturbance of the fibers could cause them to go airborne and put you at risk of inhaling asbestos. Vermiculite insulation is often found in attics. Rock wool insulation is fabricated from belted basaltic rock and dolomite with binders being added. Vermiculite insulation has a pebble like appearance and typically is a grayish brown or silvery gold color.
They could also be found stuffed in paper bags and inserted into floor joists. Another loose fill insulation with an asbestos exposure risk is vermiculite insulation. It is commonly found in fiber bundles with a cotton style look. It could be loose fill asbestos fiber and is extremely dangerous.
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. Rock wool comes in brownish white off white or white. Brown insulation is available in either blanket rigid foam board or loose fill form. Rock wool comes in brownish white off white or white.