I'm pretty sure I've never seen this stuff before. It's installed in rafters as batts, held in place by cardboard sheets below. Papery consistency, now crumbling. The house is ~1923, but no idea when…Continue
"Actually, you are incorrect. I just removed an entire attic full of Kimsul insulation from my 1930 home after doing considerable research on it. I know what I have is Kimsul because the brand name is clearly marked on the paper backing…"
Thanks for sharing the brochures. The middle link shows a lot of detail. I found their heat loss savings calulations really interesting but way off if they are considering a house with no insulation to maybe an…"
"We had a sample of the insulation lab-tested, and the result was a negative without qualification — no asbestos found. This is only one case, of course. For all I know, some of the product was made with asbestos and some wasn't. But it…"
"Many thanks to all for suggestions here.
Over at InspectionNews someone else offered the name "Balsam Wool" — and with a little further digging online, that led me to what I now think is the actual answer, an old Kimberly-Clark…"
"All I can say is that if it isn't known and has the appearance of something that could contain asbestos (i.e., not clearly fiberglass or mineral wool, etc), OSHA requires that it be PRESUMED to contain asbestos and treated as such until negated…"
"Never saw this, but looks a little like air-cell pipe insulation. This is considered Presumed Asbestos Containing Material. You should have it tested by an accredited Asbestos Inspector before doing anything to disturb it. "
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A presentation by Greg Labbé in April 2014 on retrofitting vintage home for energy efficiency. He talked about basic building science, brick houses, movement of heat energy and moisture in and out of the house, air barrier and water barrier, house…