How Far Should Roof Sheathing Overhang Fascia

Nail thefurring strip to the fascia board near the fascia top tight under any extending of roof decking usually absent.

How far should roof sheathing overhang fascia.

Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. 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. We go in depth on how to install roof sheathing. 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. The lower edge of a roof should extend beyond the fascia board by about 3 4 inch so that runoff drains into the gutters. 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. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes.

That said overhangs can extend as far as 2 without the need for external supports. Roof sheathing overhang on fascia. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. Soffits appear anywhere a roof extends beyond the walls by more than a few inches.

This is to just enough to cover the 3 4 x6 actual 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. It is at 45 3 4 in. Overhangs can vary from a few inches to a few feet depending on preference.

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. Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg.