The contractor replaced some FRT plywood. In one spot a 6 inch piece of plywood overlaps another piece of plywood. There are 6 inch strips of plywood all across the peak of roof. It looks like the old plywood went all the way up to top of the peak, there is one piece of old plywood left. I have a townhouse , the contractor extended the plywood on my house over to the other house. In one spot the plywood has popped up half in inch, aparently because the wall betwwen the houses is higher and the plywood was bent in the middle.