How Far Should Roofing Shingles Overhang

In my opinion the felt underlayment should also extend beyond the drip edge by 1 4 to 1 2 inch.

How far should roofing shingles overhang.

Too little can allow water to seep into rake or fascia boards. Anywhere from a 1 2 to a 1 overhang is acceptable as you can tell from the varying comments amongst the previous posters. In my opinion the shingles should never be exactly even with the edge of any drip edge flashing. 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.

The length of the overhang itself commonly ranges from 2 to 5 inches. 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. 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. 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. Here phil explains how much overhang a roof should have at the gutter.

How to cut shingles off the edge of a roof in a straight line.