How Far Should Roofing Shingles Overhang

The length of the overhang itself commonly ranges from 2 to 5 inches.

How far should roofing shingles overhang.

The rake edge is the extreme edge of the roof on either side. In my opinion the felt underlayment should also extend beyond the drip edge by 1 4 to 1 2 inch. Each has their own reasoning for a slightly different amount of overhang. Too much overhang and the shingles could blow off in high winds.

You may find other styles and sizes of drip edges in the store including j channel drip edges but these are intended for windows doors and other applications. The edge of a roof in professional vernacular is called the rake edge. 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. A architect and roofing consultant harrison mccampbell responds.

Too little can allow water to seep into rake or fascia boards. 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. 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. Here phil explains how much overhang a roof should have at the gutter.

In my opinion the shingles should never be exactly even with the edge of any drip edge flashing.