It looks like tar paper above the skip sheeting, so when you tear off the old roof you'll have
nothing over top of the skip sheeting. If indeed you want to have the existing rafters/skip sheeting now
" That's some nice looking existiing wood, and not a lot of headroom; maybe they should consider tearing off the old
roof, adding some stained plywood or other, then re-rafter above the old roof with 2 x ?. You could then
" A couple of things: you mention no "vapor barrier" between the studs and the siding. I'm just wondering if you actually are talking about the rain barrier, typically tar paper under the siding, which is the part of…"
I'm hoping to help build a massive amount of Passive Homes in northern California, Insulation contractor for both the original Blue House and the new Blue2 house - the first new Passive House in California, located in Pt Reyes Station, west Marin County.
Have been an insulation contractor in Marin County since 1986.
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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…