Similarly vermiculite was used as insulation in many attics into the 1990s.
Disturbed insulation in attic.
If you think poor attic insulation may be compromising the energy efficiency of your home the team at insulation solutions of ct is eager to help.
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Although not hazardous on its own most vermiculite was sourced from a mine contaminated by asbestos.
Asbestos is safe when left alone but can be extremely hazardous if disturbed and kicked into the air.
R value simply means resistance to heat flow.
Simple thermal analysis reveals that if you have 5 missing insulation in an attic bare sheetrock you ll have a slightly more than a 54 drop in r value.
Unfortunately almost all vermiculite insulation contains asbestos and is unsafe when disturbed.
People can be affected by fiberglass when they come into contact with it either during the manufacturing process or when it is being used in a building.
It is made by pulling strands of glass into thin fibers.
Based in east hartford these experienced.
02 dec 2010 08 08 am.
It could be purchased locally and could be installed by contractor or homeowner.
Vermiculite was a common attic insulation product sold from the late 1920s to the early 1990s.
I m in the middle of crawling around the attic and sealing up all the light fixtures seams etc.
This situation is referred to as disturbed insulation and it often results in gaps and holes that can significantly affect your home s energy efficiency.
Last post 03 dec 2010 09 50 pm by fbbp.
These thermal defects undermine the r value of your attic insulation.