ReneeG wrote:
Our FW, a higher end model, has a rubber roof. We checked into upgrading it by adding a lifetime roof material, but it adds a lot of weight.
The 2 materials I would consider being close to "lifetime" are aluminum and fiberglass. Both can fail, but done properly will last a VERY LONG TIME !
It is difficult to apply one continuous piece of aluminum roof. It will still require some number of fasteners to hold it down
(hopefully stainless steel with rubber washer). Multiple piece will require a seal at the joint, preferably butyl tape. Long lasting edge hold downs are a must !
Fiberglass is labor intensive to install and multiple layers can make it heavy. All resin used with FRP break down with long term UV exposure. Typically they are painted, which of course must be occasionally renewed.
Flashing around roof protrusions are critical on any roof. Proper flashing does NOT require large amounts of caulk !