Quote:
Originally Posted by Evil Scotsman
How would I cap/finish the windows on the outside with asbestos shingles?Thank You
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Installation would be much like that for retro-fitting a window into modern fiber-cement siding.
Hopefully, the shingles are installed over a weather resistant barrier (WRB), likely (given the age of the building) "builders felt" - this served somewhat the same purpose as a more modern WRB such as house-wrap ("Tyvek")
If so, you would install a "Z" flashing
under the WRB and out over the head trim on the windows. It would also be a
very good idea to install a pan flashing at the bottom of the window and out over the siding. (Some replacement windows have "self-flashing" features which according to the manufacturers makes a "Z" flashing unnecessary if the windows are installed according to the manufacturers instructions - many experienced installers are skeptical about the long-term performance of this arrangement in retrofit installations, and prefer to also install a head flashing as a "belt and suspenders" approach.)
You can get a general idea of the procedure from the right-hand Fig 3. here:
http://www.jameshardie.com/pdf/insta...epanel-hz5.pdf
And from this article:
http://www.finehomebuilding.com/PDF/Free/021197054.pdf
except that you will be working with the existing WRB rather than the house-wrap shown in the article.
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Cutting the asbestos siding in such a way that the asbestos does not become friable is another issue entirely.