I would vent through the roof or back wall for sure.
How To Attach Dryer Vent To Outside Wall. Then, press the dryer vent to the wall and hold it down using pipe straps and simple screws. Here's how you can start the process.
Installing Semi-Rigid Dryer Hose to Prevent Fire Hazard ... from i0.wp.com
If it's easier you might only want to remove material attaching the vent to the duct inside the wall. How to install a dryer vent and make sure that it is safe. With the hose clear, head outside to your home's exterior vent.
How to install a dryer vent and make sure that it is safe.
The trickiest part of installing a range hood is determining how to run the ventilation ducts. Dryer vent replacement in 6 steps. It should go around the metal pipe somewhere. A properly installed range hood will vent hot air and cooking odors outside as well as help keep kitchen surfaces free of grease.