Why wood roof trusses?
Keystone has metal roof trusses that connect to aluminum walls. ORV has wood trusses that attach to aluminum walls. Keystone roof insulation is R16 and ORV's is R21. Why do manufacturers still...
Forum Discussion
rbpru wrote:
The only TTs that I can think of that are least likely to leak are the shell types such as Casita etc. However even those have holes for vents and such.
The big advantage of "egg shell" TT is that the roof and the edge are one piece molded, just like a fiberglass boat. There is no real "edge". The seam (I assume) is on the vertical surface.
Hole for vents, etc. can have flange/flashing molded into the roof. This means any sealant are not used to prevent water intrusion, only to eliminate vibration and prevent bugs from entering. Mounting is another issue.
