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ART
TEC
Guy
Marsden
SOLAR HEATING SYSTEM CONSTRUCTION LOG
PROGRESS REPORT: July 23 Insulating the barn - day 1
The
guys from Viking showed up today
to spray insulation
into
the barn. This is Corbond polyurethane
foam that has an
approximate
R value of 7.3 per inch. I'm going for a very high
insulation
value to ensure that this California dude can stay warm
in
the Maine winters! They will spray 3 inches downstairs,
and
4 inches upstairs, then I'll add fiberglass over that!
I'm
aiming for R30 downstairs, and R40 upstairs.
Here
they are starting the job:
It
took a lot longer than they thought, so only the top floor
was
sprayed today, and they will finish the rest tomorrow. The
foam went
in so thick that I have no room for the fiberglass
insulation
that I planned to add on the sloped roof, but the
extra thickness will yield a similar
level of insulation anyway.
I'll
end up with an almost airtight space
after I finish framing in the large
doors downstairs with smaller ones.