fiberglass: Insulation in the home- Wenatchee and Leavenworth Home Inspection - 07/04/11 06:16 AM
Insulation in the home- Wenatchee and Leavenworth Home Inspection
This is a follow up to my blog on The Scientific Basics of an Insulator.
There are many ways to insulate a home. Fiberglass is the most common but you may want to consider other options. They all have their plusses and minuses.
I am not a big fan of fiberglass for many reasons but it is the industry standard. So here is a list with some information of all the major insulators in no particular order.
The R-value for an insulator is a measure of thermal resistance used in the building and construction industry.
Insulation … (2 comments)

fiberglass: Scientific Basics of an Insulator- Wenatchee and Chelan Home Inspections - 07/03/11 05:35 AM
Scientific Basics of an Insulator- Wenatchee and Chelan Home Inspections
The basic principle of any insulator is its ability to limit the transfer of heat energy.
Heat is the energy exchange between two thermodynamic systems which differ in temperature. Like the Sun to the earth or your bare body to snow. The transfer of thermal energy will always go from the system of higher temperature to the colder system. When the two systems have reached a thermodynamic equilibrium (same temperature) they will cease to exchange thermal energy.
                                                             
Heat moves by three basic ways: conduction, convection, and radiation. The first … (4 comments)

fiberglass: Fiberglass- Health Risk? Part 2 Wenatchee and Chelan Home Inspections - 06/12/11 03:41 AM
Fiberglass- Health Risk? Part  2   Wenatchee and Chelan Home Inspections
I know this evidence is still not concrete but indications are compelling. Here is the original blog (link)

This is from my best friend who is a PhD in Immunology and spent over 25+ years as a research director, scientific editor and leading authority on dendritic cells-
"Curious tidbit:  "Nonmanufacturing occupational exposure levels for end users of glass wool products typically are higher than exposure levels in fiber-manufacturing environments." 
The proposed mechanism of action makes sense.  Macrophages in the lungs are responsible for engulfing the fibers and getting rid of them.  The … (4 comments)

fiberglass: Fiberglass- Health Risk? Wenatchee and Chelan Home Inspections - 06/11/11 02:16 AM
Fiberglass- Health Risk?   Wenatchee and Chelan Home Inspections

I found the article below very interesting. Just this week I had a discussion with another Home Inspector and an Asbestos Abatement company about fiberglass. My opinion was that I could see that we will be writing in our Inspection Reports "Home Built Before (insert date) may contain fiberglass" then my recommendation.
Well just today I came across this article from the National Toxicology Program, Department of Health and Human Services
Excerpt from article-
Certain glass wool fibers (inhalable) are reasonably anticipated to be human carcinogens based on (1) sufficient evidence of … (17 comments)

 



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