[RE-wrenches] Tar and Gravel Roof Moint

[benn kilburn]

Eric,
Locate a reputable roofer experienced with the roof type you are dealing with and sub them to install stand-offs for you, once you determine the array layout.  This will save you alot of time and grief, and you will know that the job was done right.  Unless you really want to learn the finer points of penetrating and waterproofing a flat tar and gravel roof ....not for me.
or...Do you have the option of using a ballasted array.  Of course, have the design OK'd (stamped?) by an engineer.  There's lots of wind loading with a tilt up array on a flat roof.  
benn
DayStar Renewable Energy Inc. benn at daystarsolar.ca780-906-7807 HAVE A SUNNY DAY







Date: Thu, 14 Apr 2011 14:08:39 -0700
From: solarepiphany at gmail.com
To: re-wrenches at lists.re-wrenches.org
Subject: [RE-wrenches] Tar and Gravel Roof Moint

Anyone have experience mounting a tilt up array over a tar and gravel roof? Weatherproofing, best practices for finding rafters, type of standoffs etc. The residential roof in question has over 3" of tar (!) so im thinking 6" stanchion to tilt legs. Any ideas or lessons learned would be helpful.

Thanks,
Eric Thomas

Solar Epiphany

Seattle

NABCEP Certified PV

WA Electrical Contractor SOLAREL911NR

_______________________________________________
List sponsored by Home Power magazine

List Address: RE-wrenches at lists.re-wrenches.org

Options & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
www.re-wrenches.org/etiquette.htm

Check out participant bios:
www.members.re-wrenches.org 		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20110415/95a960fa/attachment-0004.html>