how to tell if it's a roof leak 4
https://theroofleakactips.fairmontdigest.com/posts/is-that-water-spot-a-roof-leak-or-ac-problem-how-to-tell-the-difference
Use the flashlight trick. Wait for a steady rain, then head to the attic with a bright light. Look for dark streaks along rafters, not just a puddle. Drip patterns often follow the roof slope. Feel around for damp insulation or musty spots, which confirm water is sneaking in from above, not from a busted pipe.