Roof Dryer Vent Cleaning in San Diego, CA

Why roof-terminated dryer vents clog faster

Why does the upstairs dryer take two or three cycles when the one downstairs never did? Usually the answer is gravity. A long vertical roof run asks the blower to push lint straight up. Whatever does not clear the cap drifts back down. It settles in the elbow at the roof jack. That elbow packs hard, almost felted, and a leaf blower at the dryer will not move it.

Roof work on two-story tract homes means concrete S-tile or flat tile. Stepped wrong, tile cracks. We brush from the termination down and vacuum at the appliance at the same time, because a rotary head sends a slug of lint back toward the laundry room if nothing catches it.

Caps are the other half. Sparrows and finches build in open hoods. Screened caps collect lint like a filter. Codes prohibit screens on dryer terminations for exactly that reason. After Santa Ana events we pull grit and ash from the last few feet of duct.

Roof runs want attention at twelve months or less. Marine layer mornings make a marginal duct feel broken. If your attic run is foil flex and already crushed, cleaning only buys time; rigid metal is the real fix.