How Much Overhang For Roofing Shingles

Too much overhang and the shingles could blow off in high winds.

How much overhang for roofing shingles. Keeping a solid roofing layer of shingles is an important way to avoid water damage and. Shingles protect sloping rooftops from the effects of rain snow and hail while providing an attractive crown for the house. A architect and roofing consultant harrison mccampbell responds. Each has their own reasoning for a slightly different amount of overhang.

Knowledgeable roofers will install shingles at just the right overhang for your roof type. Anywhere from a 1 2 to a 1 overhang is acceptable as you can tell from the varying comments amongst the previous posters. Too little can allow water to seep into rake or fascia boards. The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.

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

Asphalt shingles range in price from about 25 per bundle for a standard 3 tab style to around 50 75 or more for an upgraded architectural style. 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. Since transportation is a major cost factor expect prices to vary by location. In my opinion the felt underlayment should also extend beyond the drip edge by 1 4 to 1 2 inch.

Here phil explains how much overhang a roof should have at the gutter. After each shingle line has been laid one shingle will overhang the rake edge.