[RE-wrenches] RE-wrenches Digest, Vol 3, Issue 448

[William Korthof]

Flashed footings... 

Cost shouldn't be the problem. 

You can buy solar stand-offs for around $5 each from Ezee manufacturing 
(North Hollywood, CA) and Otay rubber flashings for under $5 each. 
In SoCal, they appear to work adequately for PV mounts and service risers 
(7-10+ years, no sign of degradation). For extra protection, you can go ahead 
and put a bit of mastic under the roof mount to provide extra protection on the 
lag screw holes. You can also paint the top of the flashing to make the rubber 
last longer.

/wk

> 
> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Nick Soleil
> Sent: Wednesday, June 23, 2010 8:10 PM
> To: RE-wrenches
> Subject: Re: [RE-wrenches] Flashed Footing Requirements
> Who can help:
>    One of our local jurisdictions, City of Petaluma, is beginning to
> require flashed footings under all solar arrays.  I think that some flashed
> footings are better than the Unirac L feet or Prosolar's TileTrac foot, but
> the flashed footings cost a lot more $, and some flashed footing products
> seem flawed (less watertight)  They are asking me to uninstall two
> commissioned systems from last week, and replace the footings with flashed
> Fast Jacks, even though the documents detailed the penetration method.
>    I am looking for some good info that supports flexible installation
> methods, including caulked footings.  Our industry has come a long way from
> the early days of racking on slotted angle iron with steel L-brackets for
> feet, but those experiences tend to give me confidence in continuing to use
> caulked footings.
> Nick Soleil
> Project Manager
> Advanced Alternative Energy Solutions, LLC
> PO Box 657
> Petaluma, CA 94953
> Cell: 707-321-2937
> Office: 707-789-9537
> Fax: 707-769-9037
> 
> 
> 
> yy
> 
>> 

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