Exterior Installation and Testing Feed the duct through the wall cap, slide the flashing collar over the interior section, and secure the cap from outside with screws. Required Tools Dryer duct (metal, rigid) Wall cap with backdraft damper Sheet metal screws and clamps Hole saw and drill Duct insulation and foil tape Measuring tape and level Cutting the Wall Opening Locate the vent spot on the exterior wall, ensuring it is above ground level to prevent water intrusion and away from windows or doors.
Installing a Dryer Vent Wall Cap With Backdraft Damper
Planning Your Vent Route Before you cut a single hole, map out the most direct path for the duct. Route the duct along the joists, supporting it every 4 to 5 feet with approved straps.
Ensure the backdraft damper moves freely and the cap screen is clear of debris. Connecting the Duct Inside Attach the duct to the dryer exhaust port using a self-sealing clamp, securing it tightly to prevent leaks.
Installing a Dryer Vent Wall Cap With Backdraft Damper
Check the entire route again for sagging sections and tighten any loose clamps. Measure the total length carefully, as long runs require larger diameter duct and more support.
More About How to install a dryer vent
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