Roof Dryer Vent Cleaning in Thousand Oaks, CA

Why does the roof vent clog faster than a wall vent?

Because lint has to climb. An interior-closet run goes vertical, turns in the attic, then exits a roof jack. Airflow slows at every turn. The last few feet before the roof cap pack solid first. That is where we find the mat. Two-story tracts here are built this way almost everywhere.

Cleaning it is a two-end job. Rotary brush from the laundry side pushes lint up the riser. Someone has to be on the roof catching it, or the debris falls back down the chase. We also check the flapper. Stuck-open flappers on roof jacks let dust and rodents in. After Santa Ana winds, that same opening takes fine ash straight into the duct.

Winter rains add a second problem. Cold attic runs sweat inside. Damp lint stops being fluffy and becomes a packed mat that brushes alone will not move. Musty smell in the laundry room usually means that, not the washer.

Three cycles on towels is the signal most people notice. Before calling anyone, step outside during a cycle and look at the roof cap. If nothing is blowing out, the blockage is real. Annual service is normal for attic and roof terminations.