How Far Should A Roof Overhang

This leads to a situation where there is an excess amount of shade and the exterior of the home appears dark and gloomy.

How far should a roof overhang.

Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. Roof and overhang systems should be designed to resist wind uplift especially in hurricane prone regions. Measure up the rafter 45 3 4 inch from the cut end of the truss tail and snap a line along the trusses. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction.

Too much overhang and the shingles could blow off in high winds. Knowing how much overhang roof shingles should have is only a small part of the job. The siding underneath the overhang is known as the soffit. Overhangs are common in most house designs providing protection against both wind and rain.

The length of the overhang depends primarily on the climate. There isn t general rules to size an overhang. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. Because this style of a shed has a flat roof it can facilitate a wider overhang which is ideal for storage.

With a flat shed roof the roof simply extends past the wall plate to provide an overhang. The roof overhang does not extend far enough. Oversized overhangs can increase the risk of roof or truss uplift. If you re going to take the leap and try it yourself do it safely and smartly.

In the first case the overhang is simply too big for the home. The optimum depth varies with the latitude and the type of climate. 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. A typical metal roof overhang may be 2 to 4 inches or even less.

A related problem is that the roof is actually at greater risk of wind damage. Moreover in winter months when the. This indicates the upper edge of the first row of roof sheathing leaving enough overhang that the subfascia and fascia will tuck neatly underneath when the time comes.