How Much Should A Shingle Hang Over The Roof Edge

Knowledgeable roofers will install shingles at just the right overhang for your roof type.

How much should a shingle hang over the roof edge. Don t overdo the overhang shingles that extend more than 3 4 inch can eventually bend and fracture leaving the roof sheathing and fascia vulnerable to water damage. When you place the next drip edge piece it should overlap the first by an inch. Shingle manufacturers say to use a 1 4 to 3 8 inch shingle overhang over the eave where your roof ends. 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.

I was worried that because the edge shingle is the bottom layer fixing this would require redoing it. Getting your overhang installed correctly is essential but what does that mean. Why is overhang important. 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.

This article will go over why overhang is so important and how much overhang shingles should have to dry properly. The 3 4 overhang of the shingle creates a full 1 overhang from the fascia to the edge of the shingle. Too much overhang and the shingles could blow off in high winds. Use roofing nails to secure the drip edge.

Too little can allow water to seep into rake or fascia boards. The overhang of roof shingles is the amount of the shingle that extends past the lower edge of the roof creating a lip. Nail high up on the drip edge so that the shingles will cover the nails. In my opinion the felt underlayment should also extend beyond the drip edge by 1 4 to 1 2 inch.