My final assessment of the coachman is that is was poorly built by the manufacturer. Here is why...
1. Rubber roof terminates under the filon/plywood in the front. When the caulk seam failed in year 5; the camper started to get wet. This is done to keep the rubber from getting road air up and under for warranty year performance.
2. Width of top of front section was built a half inch big which left an extra area for water intrusion.
3. All 6 gutter terminations terminate onto the camper or into putty tape joints, sending any good hard rains directly into caulked/puttied seams. Other camper makers spend the 50 cents to divert the water away.
4. Slideout wall assembly is a major error. Manufacturer terminates edpm on inside of wall for convenience in manufacturing with no plan for ten or twenty year lifetime. Then to insult buyer even more; seam is protected with caulk that literally pulled away after thirteen years...I attest it really never stuck well to the rubber-ever.
5. Design of roof seam intersections allows for pooling on top of roof.
I strongly recommend avoiding this manufacturer based on the above reasons.
Sorry if this is problem for the webmaster; it needed to be said after all the energy I put into fixing the thing.