Originally Posted by dcollison
... what did you use, where did you get it and how is it applied (i.e. does the trailer need to be raised)?
In the factory the trailer is raised on a lift for access for the work underneath, including applying insulation. I think that it would be very difficult spray on insulation without raising the trailer, but just putting it up on ramps and tilting the end you're working on up (i.e. nose-up for the grey waste tank and nose-down for the fresh water tank) would likely be adequate.