What they do locally is put up a flat roof on posts over the trailer. Which then proceeds to leak.
Were it I, I'd try to source some sections of roofing from these railway vehicle deilvery cars.
1.bp.blogspot.com/-avE0q958Vb0/UtL6MJo9AaI/AAAAAAAGd-8/IuVx93hLjBw/s1600/CNA+704163+AUTORACK+Rail+Car+Canadian+National+Rai lway+Canada,+Auto+Rack+Automobile+Transport,+Canad ien+National+Railroad+Georgia+Freight+Train.JPG
New or used. They should be 8ft 6in, IIRC. That should straddle an 8ft trailer, or you could cut them down to make a vaulted ceiling.
Else a trolley top. 
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
____________________
.
.Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
|