How Much Overhang For Roof Shingles

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

How much overhang for roof shingles.

I was worried that because the edge shingle is the bottom layer fixing this would require redoing it. Mark 12 inches up on the roof for the first course of shingles then mark every 5 inches all the way up the roof to set your reveal. Do this on both sides of the roof. If you do not have a drip edge flashing installed shingles should overhang an inch to an inch and a half.

A architect and roofing consultant harrison mccampbell responds. 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. If you have installed a drip edge flashing you should have between half an inch and three quarters of an inch of shingle overhang. The length of the overhang itself commonly ranges from 2 to 5 inches.

The 3 4 overhang of the shingle creates a full 1 overhang from the fascia to the edge of the shingle. How much overhang should roof shingles have. Too little can allow water to seep into rake or fascia boards. To lay out the design for the shingles begin at the bottom of the roof and place a tape measure inch from the edge of the roof to ensure the shingles overhang the drip edge.

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. Roof drip edges are generally sold in 10 5 foot lengths but they are occasionally sold in 8 foot lengths or smaller. This profile of drip edge is shaped like a t with a lower flange at the bottom. Too much overhang and the shingles could blow off in high winds.