I would try to vent it through the side wall if you can.
30+ Venting Bathroom Fan Through Roof Pics. I'm planning to install a roof vent for a bathroom exhaust fan i'm putting in. (see below for a shopping list and tools.)
Adding A New Vent On Your Roof Youtube from i.ytimg.com
Even if a roofer does it, it is more likely to leak than a roof without a hole in it. Slide a flat pry bar underneath the shingles around the nail to break the weather seal. A wide variety of roof vent for bathroom fan options are available to you, such as certification.
Buy an aluminum coil dryer hose reach into the hole and grab the vent hose.
Can such a fan be vented through a flat roof without outside air getting back in for the most of the time that it. But i was wondering if i need to worry such a vent terminal can work, depending on your roof's micro climate. Keeping air flowing through your motorhome, travel trailer, 5th wheel or toy hauler can be an issue at an rv roof vent fan. It is roofer's work and i can't help with this.
