OSB stands for oriented strand board. It is made of wood strands and waterproof adhesives. The strength of OSB board is equal to that of plywood.
hardboard, particleboard, insulation board, medium-density fiberboard (MDF), waferboard, oriented strand board (OSB), and other panelized products made from wood chips and particles.
Oriented strand board is manufactured in wide mats from cross-oriented layers of thin, rectangular wooden strips compressed and bonded together with wax and resin adhesives (95% wood, 5% wax and resin[citation needed]).
One will need oriented strand board, plywood panels, or solid wood for the siding panels. One will need wood to make the wood foundation. One will also need composite trim, materials for a door, and windows.
If you paint over the "weathered" paint, it will chip and cause the stain to come off. Also, the stain needs a clean sanded surface in order for the wood to absorb it. Otherwise, there is no reason to use stain.
It does
Yes water does absorb into wood!
Most paint dries faster on wood.
The advantage of using paint for wood is that it makes the wood look nicer. The disadvantage of using paint for wood is that the wood as no real protection and it can rot and get damaged easily!
It usually is a reference to the wood grain pattern. For example, in quality furniture, you will find the different wood grain patterns either are oriented in the same direction or complement each other. Randomly oriented means that the wood grain patters do not seem to match with each other.
Varnish preserves wood better than paint.
Veneered wood has very much the same surface as any smooth wood. There are no specialised techniques to paint it.