I replaced all the siding on my rebuild project a number of years back.
I sourced it from an RV dealership with service dept. They had a siding line in their shop. I was able to choose from several different profiles and styles.
If you call around to the dealer/service places and ask, they should be able to direct you to someone with a siding line.
The RV style siding is by far your best choice. It is designed for the purpose. It has an "S" lock on it. You start at the top, working your way down. The very top gets stapled tot he framing, the bottom lip of the S lock gets stapled to the studs. Then the next piece gets inserted up from the bottom into the previous one etc. until you reach the bottom. The bottom one can be bent in a 90 to go under the bottom of the trailer, to be stapled up against the framing.
Then you put the appropriate corner moldings on, being sure to seal them properly.
Residential siding is a no no. It is not designed for the movement your trailer will experience. It will be all over the highway when you travel. Wind will tear it right off in no time. And its ugly on a trailer.
The aforementioned sheets are difficult because of the flexing a trailer takes when going down the road. Big sheets have to be fastened in various places in the middle of the sheet. These fasteners will soon elongate the holes from vibration and expansion /contraction and come loose, causing leaks and likely loss of holding power. The joints will move, causing a break in the seal. And it will ripple in temperature fluctuations.
I have been working with aluminum for nearly 40 years now so I've had lots of experience with all I have stated.
I bought all the siding to redo a 25 foot TT for around $1200. Might have been 1300, I forget exactly now.
Check out
http://www.all-rite.com/They have an awesome line of products and do supply siding as well.
But be careful! Their prices are nothing short of absolutely ridiculous!
