How Far Should Roof Sheathing Overhang

Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.

How far should roof sheathing overhang.

Then i do a metal drip edge to cover it all. It is at 45 3 4 in. A typical metal roof overhang may be 2 to 4 inches or even less. This is to just enough to cover the 3 4 x6 actual fascia.

On my shed my sheathing does not protrude actually how both my house and shed are done is a 1 x 6 house 1 x4 shed fascia is installed to end of rafters then 1 x 1 1 2 is tacked onto the fascia at the top. Roof sheathing overhang on fascia. Nail the drip edge to the roof sheathing at roughly 18 24 spacing intervals using roofing nails. Too much overhang and the shingles could blow off in high winds.

Now that i ve modeled what i was going to build i decided i need a piece of molding to break up the plain look of just the fascia trim plank. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. The edge of the shingles should hang over a roof between an inch and an inch and a half or between a half inch and three quarters of an inch if drip edge flashing is installed. Points to the installation of ice and water shield along the lower roof eaves protecting against ice dam leaks that are common on un vented roofs in cold weather or snow climates.

The roof sheathing comes down and ends on top of the 1 x fascia. 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. Slide the sheet one rafter width over the end of the roof so the edge is centered on the next rafter offset one rafter spacing from the first piece of installed sheathing from the row below. The size of the roof overhang you choose depends largely on the style of your shed s roof.

Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. That said overhangs can extend as far as 2 without the need for external supports.