How to Install a Dryer Vent and Ductwork
Galvanized ductwork is perfect for use in conjunction with venting your dryer. It is healthier because it doesn't support mold growth. It is more expensive than other ducting choices, but it may be worth the cost because installing it is a snap.
Install ductwork to a dryer vent. Use a hole saw to cut the opening for the vent hood at the side of the house near the place where the dryer is located on within the house. Use a 4 1/4-inch hole saw to cut the hood opening.
Install a vent hood. Attach the hood to the side of the house with screws. Seal the hood with caulking.
Connect a galvanized elbow to the hole inside the house. Attach ducting to the elbow using metal screws. Affix screws 4 inches apart around the the pipe. Seal with ducting sealant and duct tape.
Attach the ducting length to an elbow. Install the duct into the dryer vent outlet.