I'm trying to figure out the easiest way to install a bathroom fan. I don't have any crawl space so its either take out drywall, or wait until I re-roof the house. I don't plan on re-roofing anytime soon, so any advice would be appreciated.
Several of us have found the Panasonic Whisper Wall fans a great solution.
Try searching the Chatterbox forums.
Here's a start:
http://eichlernetwork.com/chatterbox_lounge/viewtopic.php?t=1686
http://eichlernetwork.com/chatterbox_lounge/viewtopic.php?t=876
Also, here is a picture of how/where we added them, hope it helps.
http://www.flickr.com/photos/colcer/91298639/in/set-72057594054112798/
Thanks for the link Ramon. I was looking at a panasonic, so glad to hear that they get such positive reviews on this site. The model I was looking at indicates that I could install it in the space between the ceiling and the roof (not a lot of room, but it should fit below the roofline. It would be great to hear about how people have installed a ceiling vent/fan and not cut a hole in the roof. I'm thinking the only way is to remove sheetrock from the ceiling, but maybe there is a better way.