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Posted by Snydley on October 24, 2005, 8:08 pm
I just had a 28' x 40' pole barn built with a gambrel roof. I want to
insulate it and contacted a guy that does closed-cell spray on insulation. I
was floored by the cost of it. What are my options as far as insulating it
goes? It is not "framed in" on the inside.
Thanks for any help you might have.
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Posted by Edwin Pawlowski on October 24, 2005, 10:18 pm
Snydley wrote:
show/hide quoted text
> I just had a 28' x 40' pole barn built with a gambrel roof. I want to
> insulate it and contacted a guy that does closed-cell spray on
> insulation. I was floored by the cost of it. What are my options as
> far as insulating it goes? It is not "framed in" on the inside.
> Thanks for any help you might have.
Prices for that sort of thing have gone way up. You could use sheets of
either extruded or expanded polystyrene sheets. It should be covered with
sheetrock to meet building codes. You want at least 2" so, to do the walls
you need over 2000 board feet of material for the walls. For the best
price, look for a foam fabricator rather than pay retail at a building
supply or home center. If you are in New England I can point you to a
couple of them.
--
http://pages.cthome.net/edhome/
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Posted by m Ransley on October 24, 2005, 11:38 pm
For foam you do get what you pay for, higher R per inch, no air
infiltration, no settling, no low temp or air degradation . Look at
utility savings not just the cost, its like buying a Hummer and then
bitching about gas, short sighted.
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Posted by nicksanspam on October 25, 2005, 7:53 am
Snydley wrote:
show/hide quoted text
> I just had a 28' x 40' pole barn built with a gambrel roof. I want to
> insulate it...
I wonder why.
show/hide quoted text
> ...It is not "framed in" on the inside.
Just poles and purlins? How about 1" "R6.8" double-foil polyiso board?
Around Phila, 4'x8' sheets cost about $16. With air gaps, the foils add
about R3 to each side. You might glue square 1x3 spacers to the back with
gobs of spray foam from a can, let that harden, then stick the board to
the inside of the metal siding with more spray foam and foil-tape the seams.
For more cheapth, you might screw 2"x4" welded-wire fence to the inside of
the poles with 1x3 cap strips and fill the 6" space between the fence and
the siding with plastic bags containing dry leaves.
Then add Gary Reysa's $350 160 ft^2 solar barn heater, described at
http://BuildItSolar.com and in the Oct/Nov issue of Homepower magazine.
You maybe store solar heat in thermal mass under a foil ceiling.
Nick
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Posted by m Ransley on October 25, 2005, 8:55 am
Nick 1" foil faced poliso is R 7.2" not 6.8
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> insulate it and contacted a guy that does closed-cell spray on
> insulation. I was floored by the cost of it. What are my options as
> far as insulating it goes? It is not "framed in" on the inside.
> Thanks for any help you might have.