I have a winter house in the Phoenix area and discovered a bit of water damage on the ceiling of one of the rooms in my house after recent monsoon rains. I bought the house in 2023, had the roof replaced that year, and had the air conditioner replaced in 2025. The AC sits on top of the house.
I went into the attic area and above the area where the leak was found, I discovered this piece of metal sticking through the roof. It appears to have sheet metal around it. This is right under where the AC sits.
I suspect it's either damage from the AC installation last year (a mis-installed footing?), or perhaps an old remnant pre-dating both the roof and the AC installation? Though I would be surprised that both the roofer and the AC installer would not notice (or mention) it. There is also an old, large antenna sitting in the attic, so possibly a remnant from that?
Any ideas? Advice on whom to contact first (roofer or AC installer) to half-ask, half-accuse them of the damage and ask for a fix? Thanks in advance.