Removable foam roof on TTT

[scrap_maker]

I am designing a TTT with a removable roof made from foam.

http://www.tnttt.com/viewtopic.php?f=2&t=59848

Given the vast foam experience in this forum, I was wondering if you can take a look at the roof and the roof-to-wall attachment design to see if it's feasible? Is there anything I should be concerned about? Any gotchas? Etc.

[GPW]

Scrappy’ ... although a Cool idea , it looks scary tall We’re just getting over Catherine’s tall trailer being blown over in a crosswind.... There seem to be some Safe and practical limits as to trailer width to height... maybe you could make it as an interlocking outer shell that could be raised and lowered (for towing,garaging) as needed...

[S. Heisley]

Scrappy’ ... although a Cool idea , it looks scary tall We’re just getting over Catherine’s tall trailer being blown over in a crosswind.... There seem to be some Safe and practical limits as to trailer width to height... maybe you could make it as an interlocking outer shell that could be raised and lowered (for towing,garaging) as needed...

This one is a Hybrid foamie...not all foam. The stationary parts of this one are going to be made with the conventional 1x2 stick frame and plywood and only the top 2 feet or so will be foam; so, unlike Catherine's, it should have a heavy enough base to keep the trailer on the road. I'm more concerned that, if not done well, the removable foamie roof could become a parasail or something of that sort. However, traveling at high speeds in strong winds can topple even a semi-truck.