Step 1
Expose the Duct
Cut through the drywall to expose the old duct work and remove the old flex duct (Image 1). Now you can install the new aluminum flex duct. Begin by connecting the new flex duct to the old one in the ceiling (Image 2) and sealing them together with aluminum tape (Image 3).
Step 2
Add Reinforcement
Secure the duct every few feet with metal straps and screws between the studs.
Step 3
Install the Access Panel
Near the floor, create a 90-degree angle in the duct and install a metal access panel around it. This is where it will connect to the dryer. Once all the connections are made, re-install the drywall with tape and joint compound.
Step 4
Install a New Exterior Vent
For a finishing touch, install a new exterior dryer vent. Remove the old vent, and install the new vent according to the manufacturer's instructions.
