Forum Discussion

Mr_Biggles's avatar
Mr_Biggles
Explorer
Sep 03, 2014

Roof servicing - how often ?

Our i-Go TT is 2 years old. It has a vacuum laminated TPO roof. I'm wondering if it would need any servicing yet ? It doesn't leak.
I'm also wondering if the roof will support my 270lbs weight if I climb on it ?
  • I would keep an eye on the roof religiously after dealing with the issues we had. Take a look at our damage and I think you'll agree that inspecting the roof often is a good idea.

    http://www.rvcircus.com/?p=72

    Due to water damage I'm in the process of replacing the roof and rebuilding the back 5' of the trailer. I really wish the previous owner stayed on top of maintenance.
  • Our TPO roof has a 12 year warranty, but it's the seams where the caulking is that should be inspected at least yearly, most manufacturers suggest every six months. Cracks in the caulking should be touched up with self-leveling Dicor (available from CW) to prevent water intrusion.

    Water can penetrate theses roof seams without ever showing any indication in terms of spots on interior ceiling. Use a ladder to view roof, vent, and antenna seams, as stated use a wide piece of plywood to displace weight if needing to touch up seams unreachable from ladder.
  • Periodic inspection of roof is mandatory in every RV - as well as "touch up" with dicor and similar products for anything that looks like a problem/potential problem. Pay attention to seams/vents/running lights etc.

    If your unable to get up on the roof to inspect then consider taking the rig into a shop to have it pressure tested - cost about $100 and will identify anyplace where air is escaping (avenue for potential water intrusion).
  • The biggest thing that you need to worry about are the seams, they should be checked and repaired as required. As for walking on the roof, I have seen two and three people on TT roofs at on time, it would be best to check with the manufacturer on what the roof would be rated for.

    Washing the roof helps to eliminate the black streaks.
  • Your best bet is to inspect it from a ladder the more you stay off of it the better.

    If you do need to go on the roof use a piece of plywood with a protective pad under it to help distribute the weight.

    The roof should last a minimum of 10 years with simple care. Wash it from time to time using plain water and a soft brush or a cleaning product formulated for TPO roof membranes.