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.

How far should roof sheathing overhang fascia.

Some gable walls have soffits and some don t. This is to just enough to cover the 3 4 x6 actual fascia. Edge clip requirements depend on the relationship of the panel span rating to the actual distance between roof framing. Starting with how to place the first row of sheathing we cover fastening methods the use of h clips stagg.

A 1 8 inch space between adjacent panel end and edge joints is recommended unless the panel manufacturer indicates otherwise. 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. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses.

Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes. During house construction fascia boards are fastened to the ends of the rafters called rafter tails before the roofing and gutters are installed. 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.

It is at 45 3 4 in. That said overhangs can extend as far as 2 without the need for external supports. Nail thefurring strip to the fascia board near the fascia top tight under any extending of roof decking usually absent. I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia.

We go in depth on how to install roof sheathing. This would add another 3 4 to the thickness. Check building code requirements for installation of panel edge clips.