Should Roof Sheathing Overhang Fascia

Building a shed roof with an overhang is an important part of protecting your shed and thus should not be overlooked.

Should roof sheathing overhang fascia.

Now that i ve modeled what i was. If not whatever you decide to use to cover the sub fascia aluminum cap plowed cedar hardi trim board. Then i do a metal drip edge to cover it all. The fascia is the wide board that s installed on edge and runs horizontally along the edge of the roof.

Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. Just like this pic except on the end of the rafters just the grey colored fascia get rid of that yellow block they are showing behind the fascia. Use 2x6 for fascia board. 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.

I ve trimmed my roof sheathing to run between 5 8 and 3 4 over the sub fascia. The drip edge should be installed over a piece of 1 2 furring strip so that it stands off from the fascia or rafter tails. 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 roof sheathing comes down and ends on top of the 1 x fascia.

If the drip edge is laid right up against the fascia or rafters then because of surface tension the water runs right up against the fascia and underneath the soffit. A shed roof overhang is something most homeowners don t think about until their standing in the rain trying to get the door unlocked or fretting about all the water that s suddenly pooling around the shed s foundation. Our illustration above shows proper placement of the roof drip edge atop the roof sheathing before installation of roofing felt or ice and water shield and spaced a bit away from the fascia board to improve its drainage. Yes the plywood should be flush of slightly shy of the outside of the sub fascia board.

Put that up first. Make sure it is square level etc.