Another episode in the Hyatt Lake saga.. By the way I got the post support in with no problems, thanks to everyone and two 50 tonn jacks.
I now have the dilema of insulating the 12/12 cathedral celing. Snaplock roof is going on in a few weeks and I have been contempating the insulation. My (terminated) contarctor incorrectly balloon framed the floor to the sill on top if the ICF walls, rather than the floor on the loft level also resting on the sill. This has created a problem in isolating the floor from the weather and still venting the rafter bays to a ridge vent.
I am curious if anyone could buy off on the idea of having no vents and filling the rafter bays with expanding foam insulation. If I can do this it would make it much easier to isolate the floors and make for a high r value in the celing. I live in Oregon, expect snow in the winter and wonder if anyone might know of any code problems I might run into if I insulate in this way? or any other draw backs.
Thanks…
Jay
Replies
That will work fine. Much better than ventilated fiberglass batts. Check prices with multiple suppliers I just got quotes of $6,500 to $11,300 for the same spray foam job spraying the same Icenene 2 pound foam. Demelak 2 lb foam, usually the low price value option was $7,000. In Oregon I think you also have Corbond and other closed cell options. Most of the guys I know and respect are specifying the open cell AKA 2 pound over the closed cell. Watch out for gaps in the soffits that could allow the expanding foam to drip down the siding and stain that and any concrete or roof shingles it might encounter.
M
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"You cannot work hard enough to make up for a sloppy estimate."