[RE-wrenches] The perfect solar ready roof

[Chris Daum]

Hi Dick:

Nope, not just high wind area, but the site gets a real bashing of hail at
least once every 3 to 4 years (like quarter sized hail at 60 - 80 mph) -- so
I will pass on the plasticky amorphous stuff, thank you, although yes, they
do look nice (til they get those whitish translucent spots from hail).
There's room for about a 5.5KW array of some decent modules (read: Sanyos or
some other high efficient modules).  I just think we need another layer of
roofing material; we'll need 16 sheets of some kinda plywood.  I am leaning
more and more in that direction.....

But I really do appreciate all your thoughts!  And by the way, right NOW,
sunny day time temps are near 70.....  Nights are a chilly 35.....

Chris Daum
Oasis Montana Inc.
406-777-4309
406-777-0830 fax

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Richard L
Ratico
Sent: Wednesday, October 20, 2010 6:59 PM
To: re-wrenches at lists.re-wrenches.org
Subject: Re: [RE-wrenches] The perfect solar ready roof

Chris,

You've probably already considered and rejected this... Unisolar PVL modules
on standing seam roofing. Solves the structure & wind problems. Goes fast if
installed on the pans before they go on the roof. Price is pretty good per
watt now.
Can't beat the look. Made in USA. I think the only downside is you may not
have enough area to place 5kW. 

I bet it's getting cold in Montana. You could stick the modules on the pans
in a heated space somewhere. This would really cut down your time and
exposure on the roof.

Dick Ratico
Solarwind Electric



--- You wrote:
 Dear Wrenches
 have a composite (shingle) roof at hand, and the owner wants to upgrade it
to a metal roof and install a 5kw+ array on it.   The rafters are those
(sort of) particle board I-beams covered with 1/2" plywood (and shingles).
What's the best metal roofing you could suggest--and would you beef up the
wood to lag into?
      Thanks for all your input.
      Chris Daum
      Oasis Montana Inc.
      406-777-4309
      406-777-0830 fax
--- end of quote ---
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