How Far Should Roof Sheathing Overhang Fascia

Roof underlayment requirements over drip edge.

How far should roof sheathing overhang fascia.

Roof sheathing overhang on fascia. How to install drip edge. Roof drip edge is important for proper roof installation to avoid leaks and to give a straight edge to the roof eaves and gable ends. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.

How where should it be installed on roof eaves gable ends. Because this style of a shed has a flat roof it can facilitate a wider overhang which is ideal for storage. The roof sheathing comes down and ends on top of the 1 x fascia. We go in depth on how to install roof sheathing.

Here is the problem the lookouts are already in place the sheathing is installed. Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg. The size of the roof overhang you choose depends largely on the style of your shed s roof. 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.

Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. 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. The lower edge of a roof should extend beyond the fascia board by about 3 4 inch so that runoff drains into the gutters. Its top edge is tucked up under the shingles and its outside face is where the gutter is mounted.

Fascia and soffits finish the edges of roofs by covering the ends of the roof rafters or roof trusses where they overhang the sides of the house the fascia is the wide board that s installed on edge and runs horizontally along the edge of the roof. 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. I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia.

With a flat shed roof the roof simply extends past the wall plate to provide an overhang. 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. This is to just enough to cover the 3 4 x6 actual fascia. Then i do a metal drip edge to cover it all.

In some places the sheathing just doesn t have sufficient overhang for the fascia. How far should a drip edge be from fascia.