With a flat shed roof the roof simply extends past the wall plate to provide an overhang.
How much overhang for roof sheathing.
Use a 10d box 0 128 inch by 3 inch nail as a spacer to gauge 1 8 inch edge and end spacing between panels.
Spacer type panel edge clips are available from some manufacturers.
Because this style of a shed has a flat roof it can facilitate a wider overhang which is ideal for storage.
Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses.
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.
Roof sheathing panel spacing hints.
Roof sheathing is a lot more than just flat panels onto which shingles are attached.
A typical metal roof overhang may be 2 to 4 inches or even less.
I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia.
The size of the roof overhang you choose depends largely on the style of your shed s roof.
Roof sheathing overhang on fascia.
The roof s sheathing helps to keep the roof trusses or rafters properly spaced and is the strength that holds.