Roof Dryer Vent Cleaning in Milpitas, CA

How a roof-vented dryer line actually gets cleaned

The dryer comes out first. We disconnect the transition duct at the wall and inspect it before anything else. A rotary brush goes in from inside, driven slowly on a drill. Slow matters. Overspinning a brush head in a long run is how heads come off inside the duct. Then the ladder goes up. We pull the roof jack cap, brush down from above, and meet the work from the interior side. The dryer runs on air-only at the end to push loosened lint out the roof, not into the attic.

Roof jacks collect more than lint here. Dry-season dust, pollen and spider webbing bind with it into a mat behind the screen. Caps missing a working damper flap invite birds and rodents, common on foothill-edge properties near the range. Screens in a roof cap should not be there at all on a dryer vent.

Second-floor closet runs climb through the attic before they turn up. Every elbow eats into the manufacturer's equivalent-length allowance. Long runs that already exceed it never clear themselves between visits.

Winter marine humidity packs the lint damp, so it clings like felt instead of blowing free. Long upstairs roof-vented runs usually need attention every six to nine months.