beazleybub wrote:
With that said, I have decided to break the mold and use an alternative method to re-side my rig. I know weight is an issue, so after much research, I have decided to use "LP SmartSide 38" panels. These panels do not require a backer and can be nailed or screwed directly to the studs themselves. The (0.315-in x 48.563-in x 95.875-in) panels only weigh 41 pounds each, which makes them lighter than the plywood they will be replacing.
Actually, the "plywood" used is either a single layer or two layers of 1/8 in lauan plywood. A 4x8 ft section will weight about 22 lbs if two layers are used, so it is lighter than the panels you are considering. Also, Forest River didn't manufacturer the wall panels but purchased them ready made, two layers of plywood with staggered joints and the filon skin all bonded together as a single panel. These 8ft x 30+ft panels delivered to FR on a flatbed.
Your original plan will work, but flexing of the plywood panel between the studs will make gluing the filon skin securely over the full area will be difficult. Use a good commercial contact glue. You also should purchase the filon skin as a full length roll rather than 4x8 sheets, you don't need seams that may leak in the future.
Using the LPSmart panels that you are considering is not a good choice, RVs flex and gaps will open between the panels leading to new water damage.
Another option would be to use old style aluminum siding rather than filon. No need for glue and a single layer of plywood should be sufficient. This may be the best option.
