you can get one of those dryer vent kits at about any hardware store. they are really easy to install usually 4 screws and a big zip tie to hook up the hose that also comes with most to the dryer. i installed mine on my vinyl scirting, i put a small piece of plywood with a hole drilled for the pipe ...

you can put tile on the wall for your shower. we do it at work often. we put felt paper over the sheetrock then a big piece of hardyboard then the tile. with your home on a foundation you should be fine, especially since the homes we put it in travels hundreds of miles to the dealers and we very sel...