Fiberglass insulation or glass wool is a man made vitreous fiber.
Disturbed insulation in attic.
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Billdoors new member posts 25.
These thermal defects undermine the r value of your attic insulation.
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.
It is made by pulling strands of glass into thin fibers.
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.
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.
02 dec 2010 08 08 am.
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.
In the course of doing so i have to.
Similarly vermiculite was used as insulation in many attics into the 1990s.
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.
R value simply means resistance to heat flow.
Last post 03 dec 2010 09 50 pm by fbbp.
Unfortunately almost all vermiculite insulation contains asbestos and is unsafe when disturbed.