On Apr 5, 8:12 pm, DerbyDad03 wrote:
My wife got a quote to replace our roof. Since I haven't spoken to the
guy yet, I've got question about one thing he quoted:

"Additional cost of $45/sheet for 1/2" plywood."

I have 3/4" tongue & groove under the shingles, not plywood. He didn't
look in the attic, so I doubt he knows this.

Can I assume that the easy answer is - When I tell him it's 3/4"
tongue & groove he'll just quote me a higher price for 3/4" ply?

You can clarify this with your roofer, but on the rare occasions that
I have bid roof work, I would say something like "Contractor assumes
that a re-deck will not be necessary. If roof needs a complete
redeck, an additional charge of $45 per sheet of 1/2" plywood will
apply.

Most older (pre-WWII) houses in my area have a layer of cedar shakes
at the bottom, and the 3/4" pine sheathing underneath has large gaps
in between the boards to allow the cedar to breath. Once the roof is
torn off, the entire roof needs to be redecked, and we usually use
7/16" or 1/2" OSB.

JK