Our policy on filling a roof with solar is dictated by the local fire marshall.
More and more they are gravitating toward the state standard (california) which
is 3' from the ridge and sides and 1 1/2 ft each side of the valleys. we've had
some exceptions but more and more we are finding them sticking to the state
standard.....
Max Balchowsky
SEE Systems
________________________________
From: Tump <[email protected]>
To: RE-wrenches <[email protected]>
Sent: Tuesday, February 3, 2009 4:28:08 AM
Subject: Re: [RE-wrenches] Maxing out the roof
How about using modules w/ a higher power density? I always try to keep modules
from the edge, but .....
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Andrew Truitt
Sent: Monday, February 02, 2009 1:04 PM
To: RE-wrenches
Subject: [RE-wrenches] Maxing out the roof
Greetings! First off, thanks to Allan, Brian and Peter for your input on the
external disconnect signage - I won! We're having a UV rated plastic sign made
right now.
I'm interested in hearing what company's policies are regarding filling a roof
with solar. I have always advocated for a 2-3' perimeter around the array to
a) facilitate ease of installation, b) prevent excessive wind loading at the
roof edge, c) allow access for firefighters and d) I personally think it looks
better. However, I've been getting a little pressure from the higher-ups to
let the designers place modules right up to the edge of the roof to increase
system size. Their responses to my arguments are a) take all the necessary
precautions to keep the installers safe while installing at the roof edge, b)
install more attachments near the roof edge to strengthen the rack structure,
c) there is no requirement in our area for firefighter access and there will
always be access on the north-facing roof anyway and d) a roof full of PV looks
like a pile of money.
What is your policy on array size and why?
Andrew Truitt
Standard Solar
--
"Don't get me wrong: I love nuclear energy! It's just that I prefer fusion to
fission. And it just so happens that there's an enormous fusion reactor safely
banked a few million miles from us. It delivers more than we could ever use in
just about 8 minutes. And it's wireless!"
~William McDonough
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