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Natural Wool Insulation  RSS feed

 
Posts: 277
Location: SW Michigan
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Folks, anyone using natural wool insulation? It's a bit pricey, but have a window of opportunity to get some for my wall of my its bitsy small house, not to be confused with the tiny home.

Anyone have experience. I have been talking to Oregon Shepard about their products. There are others. Any pitfalls?

Let me know asap. Thanks.
 
pollinator
Posts: 235
Location: Northern New Mexico, Zone 5b
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We used wool insulation to pack around window frames and other nooks and crannies.  Basically places where you would use polyurethane foam ('Great Stuff') in conventional construction.  It works really well for that use.

We ordered from Oregon Shepard.  There is also Good Shepard Wool and maybe others.

It would probably work well as your primary insulation.  As you mentioned it is expensive. 

 
gardener
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Location: Ladakh, Indian Himalayas at 10,500 feet, zone 5
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I suppose commercial wool insulation products are treated to prevent this, but a few years ago a friend used goat hairs (a waste product of the pashmina cleaning machine in this region) as insulation, and the house owner told me this year that he's had a big problem with wool moths ever since.
 
pollinator
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You can use wool as insulation, but generally it is treated with borax to keep pest and insects at bay.
 
pollinator
Posts: 192
Location: Stevensville, Montana; Zone 4b
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Wool makes great insulation. You can get tons of free or extremely cheap wool from meat sheep owners who shear late winter--january, february--as they do not generally sell the wool but give it to their shearers. Check your local extension office to find out about 4-h programs for fairs, they will often bag tons of wool get kids sheep ready for "market weight". That wool would be unwashed though. The best way to home wash it is to stomp it with soapy water in a kiddy pool and give it a few rinses.
 
Posts: 17
Location: Pacific Northwest
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Rebecca, that may have more to do with the differences between goat and sheep than anything, but I can't be certain of that. It seems like it wouldn't be difficult to make thick, partially felted batts to use as insulation, and then treat the batts with some sort of pest deterrant (borax, possibly more lanolin, possibly other things).

Edit: I am reading some posts about making natural wool insulation, and stumbled across this one. Which basically details what's already been discussed here, sans using lanolin or felting. In retrospect, felting is a bad idea, lol. If I'd thought about it for more than a minute I would realize that.
 
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