Flat Roof Overhang Length

Here phil explains how much overhang a roof should have at the gutter.

Flat roof overhang length.

We are using 9x2 joists for the span but these will be notched down to 5 for the overhang. The first step in a free roofing estimate is measuring the roof dimensions. The siding underneath the overhang is known as the soffit. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction.

Overhangs are common in most house designs providing protection against both wind and rain. The length of the overhang depends primarily on the climate. The size of the roof overhang you choose depends largely on the style of your shed s roof. The live load depends on the maximum snow load in your area.

Metal roofs also require particular attention especially the length of flat metal roofs. Flat roofs if your roof is flat or has no more than a 3 in 12 pitch you can calculate its total square footage by simply multiplying the length by the width. This is particularly true in geographical regions where high winds are a common issue. Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure.

As an example most areas of the united. With a flat shed roof the roof simply extends past the wall plate to provide an overhang. The tradeoff between solar heat gain and shading. The roof overhang length must be properly engineered to resist wind uplift.

Steep roofs measure your house at ground level then add in the roof s overhang for greater accuracy. Because this style of a shed has a flat roof it can facilitate a wider overhang which is ideal for storage. This information is available from your building inspector or planning department. The dead load is constant and is estimated as 10 pounds per square foot for wood framed construction.

The roof load is composed of a dead load and a live load. Does anyone know what the maximum overhang can be for a flat roof construction depending on joist size.