Maximum Roof Overhang Without Support

Two feet is the general maximum length for a typical roof overhang.

Maximum roof overhang without support.

Guy wants a roof over his 2nd floor patio 9 out from the house. And can i put tile on a 4 12 roof. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. Prescriptive residential deck construction guide awa b.

The size of the roof overhang you choose depends largely on the style of your shed s roof. The irc gives a maximum of 24 for roof overhangs. Does this include drip edges that protrude or rain gutters or is it just the wood structure. 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.

Problem is the structural support is 5 8 out from the house. I m thinking 2 8 16 o c with tile roof per his request 4 12 pitch. So can i cantilever 3 4. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.

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. 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. In general roof overhangs offer an effective solution for how to protect windows doors and entryways.

For heavy roofs or in areas with substantial snowfall or winds call your local building department for code requirements. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. This can make extensive roof overhangs more trouble than they are worth in all but. A typical metal roof overhang may be 2 to 4 inches or even less.