How Much Overhang For Roof Sheathing

This indicates the upper edge of the first row of roof sheathing leaving enough overhang that the subfascia and fascia will tuck neatly underneath when the time comes.

How much overhang for roof sheathing.

The roof sheathing comes down and ends on top of the 1 x fascia. It is at 45 3 4 in. Then i do a metal drip edge to cover it all. Never attach roof sheathing with staples.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. A typical metal roof overhang may be 2 to 4 inches or even less. That said overhangs can extend as far as 2 without the need for external supports. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes.

Sheathing should be a minimum of 19 32 inch thick. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. Overhangs can vary from a few inches to a few feet depending on preference. I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia.

The typical thickness range for sheathing is 3 8 to 3 4 inch. 8d ring shank nails should be used instead. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses.