Flat Roof Overhang Size

As an example if your overhang is 12 inches you ll add 2 feet to the overall length and 2 feet to the overall width of the house.

Flat roof overhang size. Sheathing should be a minimum of 19 32 inch thick. This will protect a roof from most types of damage. A shed overhang is an easy and effective way to protect your shed. You will need to express this size in terms of square feet.

That said overhangs can extend as far as 2 without the need for external supports. Measure your house at ground level then add in the roof s overhang for greater accuracy. Rafter stock size calculator. The typical thickness range for sheathing is 3 8 to 3 4 inch.

Two feet is the general maximum length for a typical roof overhang. 8d ring shank nails should be used instead. The length of the overhang itself commonly ranges from 2 to 5 inches. Never attach roof sheathing with staples.

Roof drip edges are generally sold in 10 5 foot lengths but they are occasionally sold in 8 foot lengths or smaller. 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. Overhangs can vary from a few inches to a few feet depending on preference. Click the button to calculate the stock size needed for this job.

Check that your footage measurements are within this range so you can start off on the right foot. This will keep rain away from your shed. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. This calculator is to be used as an estimating tool only.

Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. You can add 3 to 5 inches to the top.