Maximum Roof Overhang Without Support

That said overhangs can extend as far as 2 without the need for external supports.

Maximum roof overhang without support.

Maximum rafter spans for a patio roof in areas with mild climates patio roofs are generally designed for loads of 30 psf pounds per square foot. Prescriptive residential deck construction guide awa b. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. With a flat shed roof the roof simply extends past the wall plate to provide an overhang.

Guy wants a roof over his 2nd floor patio 9 out from the house. This can make extensive roof overhangs more trouble than they are worth in all but. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.

The irc gives a maximum of 24 for roof overhangs. This will protect a roof from most types of damage. Also i am putting rigid foam on the outside of my walls so i will have about 2 1 2 of material past the sheathing. Two feet is the general maximum length for a typical roof overhang.

A typical metal roof overhang may be 2 to 4 inches or even less. If the roof overhang is not big enough then the only way to protect these windows doors and entryways is by recessing them into the thick exterior wall or by installing special casing and flashing for each door or entryway. The size of the roof overhang you choose depends largely on the style of your shed s roof. Max overhang is jl 4 max jl for southern pine for example on 16 centers is 10 6 126 so the max overhang is 126 4 31 5 details are here.

For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. I m thinking 2 8 16 o c with tile roof per his request 4 12 pitch. Does this include drip edges that protrude or rain gutters or is it just the wood structure. In general roof overhangs offer an effective solution for how to protect windows doors and entryways.