Truck bed liner on roof

ItsyRV wrote:

two travelers wrote:
Some one has mentioned to me use of the truck bed liner on the roof. Is that a good idea? What are possible problems?

You can use it but unless you have a metal roof, you'll need some type of compatible primer/bonder on the wood or fiberglass otherwise it will separate and ultimately fail. You can't apply it over a membrane roof as it will fail. The biggest problem is weight and adhesion.

Well,
Yeah, things CAN fail, if the prep is done improperly. I witnessed the prep work done on some of the coaches for this spray on roof coating. NO, THEY DO NOT PUT IT OVER RUBBER ROOFS, GEEZE! Any rubber roof is torn off and, any and all potentially bad substrate, such as plywood or luan is removed and replaced. All vents, A/C units and the like, are removed.

They will wrap that spray on liner right over the roof radius to a given point that, is either mutually agreed with the owner or, what the facility recommends. Hense, that's why they call it a ONE PIECE roof.
And yes, it is also put on ALUMINUM roofs too. When I was there, getting work done on our coach, there were several higher end coaches, lined up, in prep for getting that spray on roof. At that time, around 6-7 years ago, it was not all that bad in price. A 36' coach would cost around $3,500 or so. I have no idea what it costs now. I do know that, if we needed a roof and we really, really liked our coach, I'd opt for that spray on roof in a heartbeat.
Scott