How Far Should Roof Sheathing Overhang Fascia

The drip edge will be installed 1 8 proud of away or out from the furring strip in best practice or may be installed tight against the furring strip reduces the life of the furring strip by rot.

How far should roof sheathing overhang fascia. Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg. The lower edge of a roof should extend beyond the fascia board by about 3 4 inch so that runoff drains into the gutters. 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. 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. It is at 45 3 4 in. If this slight overhang is too short water will drip behind the gutters leading to rotted roof sheathing and fascia stained siding and even soil erosion and a flooded basement.

Overhangs can vary from a few inches to a few feet depending on preference. We go in depth on 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. Homes that have gable roofs the classic roof style with triangle topped walls at each end also have fascia running up the gable ends of the roofline.

A typical metal roof overhang may be 2 to 4 inches or even less. Soffits appear anywhere a roof extends beyond the walls by more than a few inches. Nail thefurring strip to the fascia board near the fascia top tight under any extending of roof decking usually absent. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes.

Most houses have fascia running along all of the eaves the overhangs at the bottom of the roof. I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia.