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 is to just enough to cover the 3 4 x6 actual fascia. 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. A typical metal roof overhang may be 2 to 4 inches or even less.

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. Because this style of a shed has a flat roof it can facilitate a wider overhang which is ideal for storage. 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. How where should it be installed on roof eaves gable ends.

We go in depth on how to install roof sheathing. Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg. Roof sheathing overhang on fascia. The size of the roof overhang you choose depends largely on the style of your shed s roof.

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. Then i do a metal drip edge to cover it all. How far should a drip edge be from fascia. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses.

How to install drip edge. In some places the sheathing just doesn t have sufficient overhang for the fascia. The roof sheathing comes down and ends on top of the 1 x 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.

I know that the fascia should go below the roof sheathing but what about placing the fascia even with the sheathing. 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. Roof drip edge specifications are given here. Roof underlayment requirements over drip edge.

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. Its top edge is tucked up under the shingles and its outside face is where the gutter is mounted.