How Far Should Roof Shingles Overhang

The end with the flange or flare should point down and away from the roof.

How far should roof shingles overhang.

Drip edge varies in dimensions but typically the flange that nails to the roof surface is about 2 5 wide and the vertical edge that directs roof runoff down and away is about 1 5 in depth. Ideally you d nail about every 12 inches and in no circumstances should you have 16 inches or more between nails. How far beyond the drip edge should an asphalt shingle extend. The drip edge flashing lip is 1 4 wide.

The 3 4 overhang of the shingle creates a full 1 overhang from the fascia to the edge of the shingle. Is the amount of overhang the same at the rake as at the eave. A architect and roofing consultant harrison mccampbell responds. Knowing how much overhang roof shingles should have is only a small part of the job.

The edge of the shingles should hang over the edge of the roof between an inch and an inch and a half or between a half inch and three quarters of an inch if drip edge flashing is installed and in most cases it should be. Too little can allow water to seep into rake or fascia boards. Too much overhang and the shingles could blow off in high winds. The drip edge also gives us a nice straight edge with which to align roof shingles slates or other roofing material.

Most shingle manufacturers along with the asphalt roofing manufacturers association s residential asphalt roofing manual call for a 1 4 inch to 3 4 inch overhang at both rakes and eaves. There is a lot to know a lot to do and a whole lot to be carried. If you re going to take the leap and try it yourself do it safely and smartly. Ed the roofer if what you say about fixing the problem cutting the edge is the proper way to do it than i m not terribly upset.

The edge of the shingles should hang over a roof between an inch and an inch and a half or between a half inch and three quarters of an inch if drip edge flashing is installed. Nail high up on the drip edge so that the shingles will cover the nails. We ve seen other references that suggest extending the shingles a bit more than the manufacturers suggest to compensate for wavy eaves but they do not indicate extending more than 1 inch over the eave.