[RE-wrenches] Fwd: SolarWorld wind damage

[Tom Lane]

Tom Lane - Sent from my iPad

Begin forwarded message:

> From: Tom Lane <tomlanesolar at gmail.com>
> Date: January 13, 2017 at 3:25:10 PM MST
> To: re-wrenches at lists.re-wrenches.org
> Subject: Re: Solar World wind damage
> 
> Better English sorry Mike 
> 
> Tom Lane - Sent from my iPad
> 
>> On Jan 13, 2017, at 3:12 PM, Tom Lane <tomlanesolar at gmail.com> wrote:
>> 
>> In Florida due to hurricanes we have learned that THE MODULES THAT ARE ON THE ENDS OF EACH ARRAY that we should always ADD ANOTHER RAIL WITH CLAMPS . For example if you have an array facing south then the east and west most module in each row MUST HAVE AN EXTRA OR  A THIRD RAIL ! This prevents peeling , also use a five pattern INSTEAD OF A four pattern that ties all the trusts together , a four pattern skips every other trust  . If modules are raise on struts ALL END MODULES SHOULD HAVE 11/2 sets of mounting hardware ON EACH END module and be cross braced on the struts in an X pattern to the bottom AND top of the adjacent module's two struts so that all five struts ( 3 on the end module  ) and the two on the adjacent module  are tied front and back of ALL the back struts with two L bar 3/16 thick rails in the X pattern with 5/16 SS bolts . Gator Tom 
>> PS : Do not blame the module manufacturer it is always the responsibility to look for the worst scenario possible i.e. The Record Storm at the sites history , then up it .15% .  Also use common sense which is now a super power ! I have seen people using clamps alone on modules just attached to the seems of metal roofs WITHOUT A RAIL TO TIE IT ALL TOGETHER ! Rails should always be tied to metal roofs and THEN each  module clamped to the rails . Uneven expansion and contraction on metal roofs leads to a disaster waiting to happen in rails are not used . Mounting the array  is the most important part of the contracting A) no leaks B ) no wind or storm damage . You have nothing to do with anything else except aesthetics . 90 % is no leaks and no wind damage . Esthetics is 10 % . The modules make the electricity not the contractor , wiring professionally should be a given . Roofing work is what separates a Solar Contractor from an electrician in Florida . Only CVC solar licenses and Roofers are allowed to attach modules to a roof . An Electrician has to use a roofer in Florida or a CVC Solar Contractor unless the electrician is doing a ground mount . 
>> Tom Lane - Sent from my iPad
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20170113/bfd45b0a/attachment-0001.html>