How Far Should Roof Sheathing Overhang Fascia

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

How far should roof sheathing overhang 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. 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. 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. I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia.

A typical metal roof overhang may be 2 to 4 inches or even less. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. Nail thefurring strip to the fascia board near the fascia top tight under any extending of roof decking usually absent. The lower edge of a roof should extend beyond the fascia board by about 3 4 inch so that runoff drains into the gutters.

This is to just enough to cover the 3 4 x6 actual fascia. 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. Most houses have fascia running along all of the eaves the overhangs at the bottom of the roof. It is at 45 3 4 in.

Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg. Overhangs can vary from a few inches to a few feet depending on preference. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. We go in depth on how to install roof sheathing.

That said overhangs can extend as far as 2 without the need for external supports. Roof sheathing overhang on fascia.