Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.
Rvs using marine plywood for roof.
The minimum plywood for roofing.
Vinyl siding 4 x 8 x 3 8 cedar plywood and batten strips any number of other less costly exterior grade 1 4 plywood even 10 sheet lauan plywood primed and painted with batten strips or if you have access to a metal brake trim coil can be braked to resemble the aluminum siding around 65 85 per 50 x 24 roll.
Said to last the life of your rv it would be a virtually maintenance free roof that should make rvers dance with joy.
It s glued and stabled down just like the factory did it.
Clay concrete and also slate ceramic tiles are where costs increase for best plywood for rv roof repair.
Having said that fiberglass rv roofs require less maintenance than rubber rv roofs which makes them preferable for some campers.
For a while it was like that.
Rafters run from the peak of the roof.
But with time rvers began to notice a few problems.
Many rigs that come with dynaspan and other similar products construct the floor with one seamless piece.
Fiberglass this type of rv roof is hard to the touch and is a bit more rare than a rubber rv roof because the material adds cost and weight to the rv.
A half inch cdx plywood is often used with rafter with 24 inch spacing.
Next off would certainly be wood and also steel roof shingles which are center of the roadway.
Like osb many rv manufacturers will not use the highest quality plywood.
I have never glued rubber roofing on.
Keep watching if you want to see.
I would look for exterior 5 8 plywood as a flooring and exterior 1 2 inch for roof.
Some years back the rv industry touted a whole new roofing material called epdm for ethylene propylene diene monomer m class rubber.
Not sure what is next on the camper.
I have however built a camper with fiberglass roofing.
Watch out for the home depot plywood s as many only have three ply s and or voids.
If your roof carries a heavier load like if there s less pitch and or it snows in your area a roofer may recommend the use of the inch variety.
Recreational vehicle rv manufacturing recreational vehicle rv manufacturers use apa trademarked plywood and osb oriented strand board structural panels in motor homes and mini homes in travel trailers fifth wheel trailers and tent trailers in vans pickup campers and all kinds of special order custom made and converted units.
Plywood can delaminate separate when it gets wet.