How Much Does Roof Sheathing Overhang On Side

This article series discusses roofing installation including roof sheathing roof underlayment roof coverings such as shingles slates or membranes and roof flashing.

How much does roof sheathing overhang on side. The roof s sheathing helps to keep the roof trusses or rafters properly spaced. That said overhangs can extend as far as 2 without the need for external supports. 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. 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. I note that was an easier job. A typical metal roof overhang may be 2 to 4 inches or even less. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.

How to install roof sheathing. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. This profile of drip edge is shaped like a t with a lower flange at the bottom. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes.

Roof drip edges are generally sold in 10 5 foot lengths but they are occasionally sold in 8 foot lengths or smaller. Not shown will be secured to the fascia board yellow with the gutter high end up tight against the under side of the furring strip. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. Roof sheathing is a lot more than just flat panels onto which shingles are attached.