Water appearing on a dry day usually **isn’t a roof leak at all** — and in Houston, condensation is the most common culprit.
The four things it’s likely to be:
– **Attic condensation.** Humid air meets the cool underside of your decking and condenses, then drips. Common in winter and in poorly ventilated attics. The tell is widespread dampness rather than one concentrated spot.
– **HVAC condensate line backup.** A clogged drain line on an attic air handler overflows into the pan and through the ceiling. This is the single most frequent “roof leak” we get called about in summer.
– **Plumbing vent or supply line.** A leak in a wall or attic run shows up on the ceiling and looks identical to a roof leak.
– **Ice-free but delayed drainage.** Water can sit in a low spot on a flat or low-slope section and work through slowly for days after rain.
How to narrow it down: if it appears on humid mornings, suspect condensation. If it correlates with running the AC, suspect the condensate line. If it appears days after rain, it’s likely a genuine slow roof leak.
We’ll trace the actual source before quoting anything. Replacing a roof that wasn’t leaking is an expensive way to fix a clogged drain line.