UniRac [RE-wrenches]
Michael Welch, Home Power
michael.welch at homepower.com
Fri Jan 12 13:27:36 PST 2001
I hope you guys are doing Cc's to UniRac on these.
Kurt Nelson, SunWise wrote at 06:49 PM 01/11/2001 -0800:
>jay peltz wrote:
> >
> I agree that I don't like roof installs....
>
>I haven't done a roof mount for a long time. Used to do em. Seems like
>the main thing is to really get it connected to the roof. You can't
>just lag bolt, you have to thru-bolt them with threaded rod down to a
>spanning member (doug fir, not SPF) attached to the underside of the
>rafters/trusses. Then, with no flex/movement, things can get sealed up
>pretty good.
>That said, pole mounts seem like the only way to go now. Problem is
>they don't go high enough (bout eight feet). I've done pole mount/roof
>hybrid, where-in the too tall mast gets additional support as it passes
>by the eve.
>
>Two thoughts for UniRac.
>
>1) Design a pole mount with a "mast" that can go much higher. Maybe a
>three leg tower type design (or guyed???) but something that can get the
>PV's up at/above roof-top level, and allow access to any competent
>individual with a climbing belt (incorporated ladder). Maybe a
>tilt-up!?
>
>2) Attempt to counter the "million solar roofs" mentality. Every day I
>hear people talking about the need for more "solar roofs". In fact I
>even hear myself saying things like "we need to install these
>technollogies on every house in America". Customers think they want
>PV's on their roof.
> Same with Solar Thermal. I'm seeing (an installing) more ground based
>solar thermal arrays as well, such as the "in-slab" hrdronic system Bob
>Ramlow installed at the MREA's Renew the Earth Institute.
>
>Go fourth and plant Solar firmly in the earth -- Kurt Nelson
>
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>____________________________________________________________
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Michael Welch
------------------------
"Society is like a stew. If you don't keep it stirred up, you get a lot of scum on top."
Edward Abbey
Michael Welch, michael.welch at homepower.com www.homepower.com
Associate Editor, Home Power magazine
Office Coordinator, Redwood Alliance
(Not HP mag's #s) 707-822-7884 fax: 707-822-3481
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To check out the other RE-Wrench participants:
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For info contact list moderator by email:
michael.welch at homepower.com
____________________________________________________________
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