Solar Heating Leaking on Roof

dinoco

New member
May 21, 2019
1
Lincoln, CA
Hi all!

First post so want to thank everyone on here for all the help I have gotten as a lurker the last 4 years.

Today I discovered a leak in our solar heating system for our in-ground pool. This is the first time I have been on the roof to look at the system and no work has been done on this since it was installed in 2019.

In the picture I have highlighted the exact spot with a red arrow. As you can see, this is the tubing that is most stretched by the lashing that is attached to the roof.

Firstly. I'm curious if the lashing is supposed to pull the solar tubing this taught or if this is an installation error. It seems to me that this is the cause of the failure.

Secondly. Is there an easy fix? In the second picture you will see where a section if tubing has been cut and a what appears to be a plug has been inserted. Is this a repair? (Curious what it was even installed this way?)

Any help you can all provide would be appreciated!

Thanks!
Chris

Img 1.jpegImg 2.jpg
 
Leak is easily repaired with the kit @1poolman1 linked above. The heliocol manual refers to strapping like that to get around an obstruction smaller than 6"but also says it should not be don't prior to the first spacer bar and doing so a leak will not be covered by warranty.
 
I have bent tubes around a roof jack, but not anywhere near the manifold, and not by strapping the tubes down to the roof. So it is possible to torque the tubes a bit, but not like that.

That is a completely bogus installation (for the reason you have already discovered). A solar array is constantly expanding or contracting throughout the day and night, every day, every year. Like, a lot. The entire array, both left to right and top to bottom. Strapping a few of the little tubes to the roof as a means to secure the array is not at all a proper installation, and it's amazing it's lasted as long as it has.

Heliocol mounting design has changed some since mine were installed, but whichever model you have, Heliocol supplies very clear instructions on how to do it correctly. So figure out which "year" of panels you have, and then seek that model's installation manual (it'll be online) and then just follow the instructions (which might require purchasing the proper mounting brackets). Heliocol mounting brackets are little marvels of engineering, and they are specifically designed to allow the entire array to expand and contract in every direction, as well as allow some significant wind load without it tearing the things off the roof.

As others have pointed out, that plug repair is straight from Heliocol and is legit. And it'll very likely fix the current leak, after you fix the mounting problem and get rid of that strapping.
 
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If you want to post more pics of your installation, we might be able to spot if your installer made any other errors. That way, you could correct everything all at once.
 
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