I've had solar on my roof for 3 years. Recently, the roof developed a leak that appears on the ceiling located near the single downspout. This is a flat roof with a slight angle. A rubber roof was installed the year before the solar went on (it covers an asphalt roof).
The root cause of the leak is elusive. I had the solar company come out but they didn't find anything. My roofer performed 5-year preventative maintenance early and made sure everything was good (except for under the panels).
It leaks in a weird way. Basically if there's a hard rain, I don't see dripping from the ceiling immediately. It has taken as long as the next day after the rain stops for the dripping to start. I am told this means the water ingress is some distance from where the ceiling is actually getting wet? That's consistent with solar panel attachments which start 2-3 feet from the downspout.
Now I am going remove the damaged plaster on the ceiling to get a closer look. I don't have a plan other than bugging the solar people for more troubleshooting.
The first thing, I guess, is to identify exactly how and with what my panels were attached and assess if this was done correctly and to code. I have a pic below. It looks like a circular rubber puck with a bolt in the center (the solar folks gooped some silicone on the nut when the visited-- just in case). Can anyone identify what this attachment is, and where I might find work instructions for its installation? Does anyone have troubleshooting ideas that can help me find the root cause of the leak?
The debris is just tree-stuff that seems to have stuck to the area around the attachment.