How Much Does Roof Sheathing Overhang On Side

This profile of drip edge is shaped like a t with a lower flange at the bottom.

How much does roof sheathing overhang on side.

The roof s sheathing helps to keep the roof trusses or rafters properly spaced. How to install roof sheathing. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. Roof sheathing is a lot more than just flat panels onto which shingles are attached.

That said overhangs can extend as far as 2 without the need for external supports. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. 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. The length of the overhang itself commonly ranges from 2 to 5 inches.

You can measure the overhang s edge if you d like but it should be pretty easy to make an educated guess just by doubling the length of the wall underneath the roof. Roof drip edges are generally sold in 10 5 foot lengths but they are occasionally sold in 8 foot lengths or smaller. This article series discusses roofing installation including roof sheathing roof underlayment roof coverings such as shingles slates or membranes and roof flashing. A typical metal roof overhang may be 2 to 4 inches or even less.

I note that was an easier job. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. Drip edge flashing is roughly 1 2 per 1 foot 30 cm. Overhangs can vary from a few inches to a few feet depending on preference.