Flat Roof Overhang Size

You will need to express this size in terms of square feet.

Flat roof overhang size.

This will keep rain away from your shed. Two feet is the general maximum length for a typical roof overhang. Measure your house at ground level then add in the roof s overhang for greater accuracy. Click the button to calculate the stock size needed for this job.

Never attach roof sheathing with staples. Overhangs can vary from a few inches to a few feet depending on preference. This will protect a roof from most types of damage. The typical thickness range for sheathing is 3 8 to 3 4 inch.

Sheathing should be a minimum of 19 32 inch thick. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes. The length of the overhang itself commonly ranges from 2 to 5 inches. Input the rafter span on the flat eave overhang and pitch of the roof.

This calculator is to be used as an estimating tool only. 8d ring shank nails should be used instead. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. A shed overhang is an easy and effective way to protect your shed.

Rafter stock size calculator. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. This profile of drip edge is shaped like a t with a lower flange at the bottom. 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.

Check that your footage measurements are within this range so you can start off on the right foot. You can add 3 to 5 inches to the top.