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jimrr 11-17-2011 04:13 PM

insulation 2
 
I've read all I could find for my particular situation and got a couple of replies (thanks guys) and I know enuff now to re-think the whole concept!
Situation is: I have what appears to be rock wool laying in my attic varying in depth from 0-5''. house is 1962, well built, I live in Eastern Oregon 8' of snow and not much below 0 temp. and it is generally quite dry.
I'd like to add insulation to the attic, there isn't but 4' of headspace at the highest point and you can barely make it to within 10' of the edge of the house.
I don't want to take all that rock wool out and want to add insulation.
should I forget the vapor barrier issue and just add fibreglass insulation between the ceiling joists? (not the roof joists)
Thanks, Jim,

mnp13 11-17-2011 04:23 PM

It would probably be a lot easier to blow in cellulose over all of it.

Windows on Wash 11-18-2011 07:14 AM

How is the roof currently vented?

jimrr 11-18-2011 09:21 AM

Roof has 12 X 14'' screened vent each end and eves have nearly full length 1.5'' screen. (length of house ....50') I am told I need to enlarge these vents although with enough insulation up there I don't know if this would be necessary.

Windows on Wash 11-18-2011 09:55 AM

Air Seal the attic first, then insulate.

If the soffits are not vented, you can blow the insulation right down to the eaves.

http://www.youtube.com/watch?v=OAOrT0OcHh0

jimrr 11-19-2011 10:51 AM

THANKS FOR THE HELP ALL.
Jim,


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