Andrew,
There are many existing mounting system products available on the market that use HDG, pre-galvanized sheet steel or combined Al-Zn coatings such as Galvalume. These types of coatings have been used in the roofing industry for decades and roofing product manufacturers often provide 20+ year warranties for products constructed with these types of coatings. In addition, UL considers the use of G90 or equivalent galvanization as a compliant construction for obtaining UL 2703 certification for photovoltaic mounting and bonding system products. Best regards, *Nate Coleman, PE *|* *Director of Technical Development | *Zep Solar, Inc.*| +1 (415) 329-0780 |This email contains confidential information *From:* [email protected] [mailto: [email protected]] *On Behalf Of *Solar Energy Solutions *Sent:* Friday, March 15, 2013 1:52 PM *To:* RE-wrenches *Subject:* [RE-wrenches] 14 inch aluminum standoffs? Dear All, While not participating much in the dialog I greatly appreciate your time and knowledge on matters of the Sun. My question is two fold. Are folks using galvanized or hot dipped galvanized in any way, shape or form out there for their mounting systems? I feel like I need to know this as we only use aluminum because our climate is so wet. Yet we are in a situation where using galvanized might be the best and only options, although we am not seeing anything with galvanized that is readily out there either. Fold Two: Does anyone know of a source for 'standoffs' that are greater than 7"s but less than say 20"? Sincerely, *Andrew Koyaanisqatsi* President *Solar Energy Solutions, Inc.* Since 1987, Moving Portland and Beyond to an Environmentally Sustainable Future. *503-238-4502* *http://www.solarenergyoregon.com/ * *"Better one's House too little one day* *than too big all the Year after."*
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