I have an outbuilding at the house we are buying. It used to be a pavilion for the company who bought the land many many moons ago.
Anyway the shingles are in really bad shape. The pavilion is so old the decking looks like 1x6s. I would guess pre-plywood. Instead of replacing the rotten 1x6 with 1x6s for the decking I thought I would either use plywood or OSB, felt then shingle.
Which is the question of the day for me.
Would you use OSB or plywood decking? OSB is about 3 dollars per sheet cheaper than plywood. My calculations is I will need at least 50 sheets of whatever. (plywood is 150 bucks more + sales tax). If OSB do I need to get a particular color coded sheet? The OSB Home Depot had (smaller store) had one color coded yellow. They did not know the answer.