Roof membrane , different replacement!

On a tow vehicle?

Shoot, gonna change that. Thanks

There have been several people who have replaced their rubber roof with a different material. It tends to run several thousand dollars, so it just depends on how badly you want a different roof.

I'm thinking that fiberglass would be a lot heavier than other alternatives. And you do not want a lot of weight at the top of your RV for stability reasons if nothing else. I have idly thought about using that corrugated metal roofing seen on a lot of buildings. The main issue would be sealing the edges. The roof would have to be mostly flat too, and the many cutouts seen on an RV roof would make it difficult.

I would think a metal roof could be pretty noisy in a heavy rain storm compared to a rubber roof.

use Rhino lining, et.al.
bumpy

Wha’s The matter with rubber and why are you changing the roof on a five year old unit?

Bumpyroad wrote:
use Rhino lining, et.al.
bumpy

myself and several others have put rhino/linex etc. over plywood decking in toyhaulers and cargo trailers. We all have mixed feeling on it. Unlike in a truck bed, adhesion is not a strong point. while it's almost impossible to get these off a scuffed up metal base, over plywood adhesion is marginal. if it starts to come loose at an edge it is not hard at all to pull it off by hand. Thats after the installers claimed they have specific directions from rhino/linex etc. on how to install over plywood and it will stick as well as a truck bed.

yes it makes a good floor coating, easy to clean, great for toyhaulers, etc. but we all have to be careful about adhesion issues.

In all the cases it seemed to adhere real well for a few years, then after temp cycling, vibration etc. lifting at the corners

There was some company, a franchise no doubt, that did a "permanent roof" with something. Probably akin to bedliner spray, but I honestly don't remember.

There are manufacturers who provide metal and fiberglass roofs.

As an after market, "the old rubber roof is shot" solution....With maintenance, the original roofs last 15-20yrs. By that point a replacement roof is more than the RV is worth, so it doesn't make financial sense.

PS: Define fiberglass like a boat? A cruising boat with a thin hull will be 1/4" thick. A heavily built hull can be an 1" or more thick. Even 1/4" on a 30' trailer will add upwards of 800lbs at the very highest point of the trailer. Not a good thing. The fiberglass roofs, I've see, are usually much thinner but then it takes a bit of design to avoid stress points or fiberglass will constantly be cracking.