Dear Wrenches,Does anyone have a line on seven 4 x 10 FAFCO pool heating panels? Please contact me off-line or text me at 503-789-8644.Thanks a ton!Andrew KoyaanisqatsiPresidentSolar Energy Solutions, Inc.The BRIGHT CHOICESince 1987, helping you and your Portland neighbors move towards an environme
I have heard this too, no solar involved. Chris
On 3/5/2025 12:05 PM, Tyrone Houck via RE-wrenches wrote:
Screw down metal roofs are notorious for expansion/contraction
issues...especially over long horizontal spans. It's possible that the
array is actually fixing that section in place better
I also received this type of complaint years ago after installing lag bolts
into wood rafters during very hot weather for a few days. I assume if you hit
rafters you are more likely to hear it than missing rafters and going through
decking only.
David Buckner
President
Solar Energy Systems
91
Screw down metal roofs are notorious for expansion/contraction
issues...especially over long horizontal spans. It's possible that the
array is actually fixing that section in place better than the rest of the
roof(while simultaneously keeping that part of the roof cooler) . I would
investigate the
They report that it is definitely coming from the roof and from opposite
ends of the array. It's pretty random, but only earlier in the day and
later in the day, which suggests the array and roof are heating and
cooling. I don't believe it is electrical.
But it is interesting that you mention sidi
Hi All,
I've got an acquaintance with a somewhat kludged together off grid system
within his grid tied house. (We do not need to get into the random design
decisions that went into that...)
It is an EG4 3kw 120v off grid inverter, with one of the EG4 server rack
batteries. The system runs most th
Jason,
You mentioning popping sounds reminds me of two separate systems that I was
called in to service recently where the homeowner was reporting popping
sounds. These were coming from the ground, not the roof, so it may not
apply. Both systems were roughly 10 years old, and the original installer
I had a person contact me years ago who said her solar installer put a
system up that caused popping noises everyday on her roof. It was a shingle
roof, older home, and ultimately we chalked it up to expansion and
contraction. Everything was secure and there were no indications of
structural, cosme
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