Plywood and osb structural panels.
Plywood or osb for rv roof.
For plywood it is like 5 to 10 more expensive.
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The last layer on a membrane roof is 1 4 luan paneling.
Personally i would use a layer of 1 2 plywood osb is too fragile and then add the luan.
Several grades of plywood and osb structural panels are recommended for specific rv applications.
Like osb many rv manufacturers will not use the highest quality plywood.
My rv roof leaks in several places and the roof sagged around the air conditioner.
However you might find that osb can better suit your needs than plywood for the roof.
I m halfway though sheeting the roof of my shipping container shop and already need to redo some of it.
Osb sheathing costs a few dollars less per sheet than 1 2 in.
It is true as the price of every osb board is around 15 20 per sheet 4 8 sizes.
If your going to have a the sheathing off then i would add good quality insulation too.
While surveying the damage i determined that the roof is constructed in layers including rubber material plywood and foam.
Over a period of time when subjected to high humidity or a series of dramatic wetting events osb is more prone to panel swell than plywood especially at the edges.
Talking about plywood or osb for roofing you cannot miss the information of the cost.
Osb average swell 10 to 15 depending on thickness.
Plywood average swell 6 to 8 depending on thickness.
Many rigs that come with dynaspan and other similar products construct the floor with one seamless piece.
Apa rated sheathing exterior fulfills the same function under high moisture conditions.
The air conditioner mounts to a 2 x 6 piece of plywood that is supported only on one end.
Osb comes in 4 by 8 foot sheets as does plywood but the manufacturing process allows the production of longer and wider ones.
Because of its construction some manufacturers actually make larger sheets of osb.
Thicknesses range from 5 16 to 3 4 inch and the proper.
In our area 1 2 in.
It is generally believed that osb is cheaper than plywood.
I would look for exterior 5 8 plywood as a flooring and exterior 1 2 inch for roof.
Intervals so you know where underlying studs rafters and joists are for nailing.
Osb panels often have lines at 16 and 24 in.
Some panels have a textured surface which makes them less slippery when used for roof sheathing.
Plywood can delaminate separate when it gets wet.
Both cdx plywood and osb tend to come in standard sheets of four foot by eight foot 4 8.
Osb has its advantages.
