Standard Sheet Of Roof Sheathing D

The typical thickness range for sheathing is 3 8 to 3 4 inch.

Standard sheet of roof sheathing d. Roof sheathing thickness unlike with plywood siding the plywood sheet to be used for sheathing should be at least 3 8 inch thick. Slide the sheet one rafter width over the end of the roof so the edge is centered on the next. Thickness will range from 3 8 to 3 4 inch depending upon local code. That s considered to be the minimum.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Place a piece of sheathing above the first piece that was installed to begin the second row. One side is usually better quality than the other c in this case. 8d ring shank nails should be used instead.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. The common grade of plywood for roof sheathing is cdx. It will support roof. This minimum will only work if the rafters are set 16 inches apart at most and if the roof doesn t have too much load.

Sheathing should be a minimum of 19 32 inch thick. A is smooth and knot free while d the lowest quality has missing knots and cracks. An air compressor with a nail gun will come in handy for nailing large flat areas like this. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.

When ordering the sheathing divide the total number of square feet of roof surface by 32 square feet a 4 x 8 panel and add an extra 15 for waste.