[RE-wrenches] Roof Loading request for help

[Keith Cronin]

Allan

Is this for residential, or residential and commercial?

Here, commercial systems are generally subjected to structural and electrical PE review, while residential is not. Or, should I say small scale residential, under 10kW.

Keith




________________________________
From: Allan Sindelar <allan at positiveenergysolar.com>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Tuesday, July 7, 2009 2:26:00 PM
Subject: [RE-wrenches] Roof Loading request for help

 
Wrenches,
We are currently facing a city permitting bureaucracy that
has recently discovered solar – that is, suddenly each department in the permitting
and plan review departments is coming up with standards for PV systems. Some of
the standards, of course, make no sense. 
 
PV systems typically add about three pounds per square foot
to the loading on a roof. We are facing a city requirement for structural
engineering work for standard roof attachment if the mounting
approach is to make penetrations into the roof structure. This is a typical
requirement that will only add considerable cost to each PV system, and we’re
looking to have our ammunition to fight this well stocked in advance. Specifically,
are building authorities in other jurisdictions requiring structural
engineering work for this type of roof attachment?
 
Thanks 
Allan
 
Allan Sindelar
Allan at positiveenergysolar.com
NABCEP Certified Photovoltaic Installer
EE98J Journeyman Electrician
Positive Energy, Inc.
3201 Calle Marie
Santa Fe , New Mexico 87507
505 424-1112
www.positiveenergysolar.com
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