Roof Dryer Vent Cleaning in Cardiff, CA

What a clogged roof cap actually costs you

Lint packs tightest at the roof cap. That is the coldest point in the run. Warm damp air hits it and condenses. Lint cements to the metal. A spring damper that lint props open stops closing. Rain and wind get in. So do birds. On a second-floor laundry closet, that chase runs through framing. Water in a chase is a slow, hidden problem. And the packed lint sits directly above a heat source.

Roof runs are vertical. Whatever the dryer lifts falls back when the motor stops. That is why long roof runs need clearing more often than a wall vent, roughly every 6 to 12 months. Stacked units and condos with concealed horizontal duct are the same story.

Cardiff adds its own load. May through September marine layer keeps the lint damp instead of fluffy. Eucalyptus and palm debris drops into caps. Coastal air corrodes damper hinges until they seize. Prior owners often add termite mesh or wire screening. Screens on a dryer cap are not code-legal and they mat solid.

Cleaning is done from both ends, with the cap removed, not blown at from below. If the cap is corroded through or the damper will not seat, say so before rescheduling around it.