Maybe use metal for the duct work then in the winter - it will add some heat when the dryer is running.
Finally a topic I may know more about than others. My knife knowledge base is small, but I have been in the construction industry for 30 years.
First: Using rigid 4 inch ductwork is a must. Most dryers have issues when the length of ductwork is too long (usually 25ft is the max recommended), and each 90 degree elbow adds 5 ft to your calculation. If the increase in distance is too much for your dryer I have installed these with great success: http://www.amazon.com/Fantech-DBF-Dr...t+booster+fans
Second: Aluminum tape is a must but self tapping screws are not to code for dryer vents as it creates a trap for lint.
Here is a link to the code: http://ecodes.biz/ecodes_support/fre...%20Systems.pdf
It is for 2009 but I don't think it has changed much.
Thanks Bill, that was extremely informative!
Weird Wood Pusher
I say duct the drier outdoors and get a home dehumidifier.
You can get a decent one for around $200.
It is surprising how much moisture they pull out of the air.