[RE-wrenches] Oatey and Standoff vs QuickmountPV Labor

Darryl Thayer daryl_solar at yahoo.com
Mon Apr 25 05:59:26 PDT 2011


Yes last year I repaired a solar thermal system that I had installed in 1979,  
The unprotected rubber flashings we gone, the ones that I had for some reason 
put Aluminum foil tape over were still servicable.  I did not photograph.  

Darryl




________________________________
From: Bill Loesch <solar1online at charter.net>
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
Sent: Mon, April 25, 2011 4:57:14 AM
Subject: Re: [RE-wrenches] Oatey and Standoff vs QuickmountPV Labor


Mark and Jamie,
 
Also, not an answer to your labor question, but...
 
The flexible flashings you describe are inherently less durable than their non 
flex cousins. As you are well aware, the culprit is sun or perhaps more 
accurately, UV exposure. One solar thermal install which was still going strong 
some 20+ years later had painted those flex flashings and there was no 
deterioration that I could discern. Choosing the wrong paint could, I am sure, 
produce accelerated deterioration over doing nothing. As usual, caveat emptor.
 
Even with tightly spaced modules, there is still a gap (window) for the sun to 
peek through. How do you inspect those interior flex flashings during the life 
of the system or roof?
 
Bill Loesch
Solar 1 - Saint Louis Solar
314 631 1094

 
----- Original Message ----- 
>From: Mark Frye 
>To: 'RE-wrenches' 
>Sent: Friday, April 22, 2011 9:07 PM
>Subject: Re: [RE-wrenches] Oatey and Standoff vs QuickmountPV Labor
>
>
>Jamie,
> 
>You did not ask, but I am offering:
> 
>I find the Oatey flashing with the elastomeric boot to be a somewhat suspect 
>product. I know, I know....you see them everywhere on the finest tract 
>homes....but....
> 
>My everlasting image is of 6 or 7 of them peeping out below the last row of 
>modules..except..there wasn't any rubber there anymore...all rotted out.
> 
>Back in the day I went for a custom rolled cone flashings that I could caulk 
>into the post and slide a rubber counter-flashing over the whole thing.
> 
>Overkill....perhaps.
> 
>Best of Luck.
>
>Mark Frye 
>Berkeley Solar Electric Systems 
>303 Redbud Way 
>Nevada City,  CA 95959 
>(530) 401-8024 
>www.berkeleysolar.com  
>
>
>
________________________________
From: re-wrenches-bounces at lists.re-wrenches.org 
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jamie Johnson
>Sent: Friday, April 22, 2011 6:59 PM
>To: RE-wrenches
>Subject: [RE-wrenches] Oatey and Standoff vs QuickmountPV Labor
>
>Wrenches,
>
>We have been asked to quote a large number of installs on comp shingle roofs for 
>an individual owner who requires Oatey flashing's with a 3" standoff on all 
>installations.  
>
>
>For the past 2 years we have installed the QuickmountPV product on comp shingle 
>roofs and are use to the labor rate quoted for that, my notes from 2+ years ago 
>seem to reflect a 20+% savings in labor by using the QMPV vs the Oatey and 
>standoff method.
>
>Since my notes may not be accurate, I am curious if you are willing to 
>share, what the rest of you have experienced with the labor difference?
>
>Thanks in advance.
>
>
>
>Jamie Johnson
>NABCEP Certified PV Technical Sales Professional
>NABCEP Certified Solar PV Installer
>
>General Manager
>SOLAR POWER ELECTRIC
>
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