Maximum Roof Overhang Without Support

Prescriptive residential deck construction guide awa b.

Maximum roof overhang without support.

Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. 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. 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. With a flat shed roof the roof simply extends past the wall plate to provide an overhang.

This can make extensive roof overhangs more trouble than they are worth in all but. And can i put tile on a 4 12 roof. So can i cantilever 3 4. This will protect a roof from most types of damage.

Problem is the structural support is 5 8 out from the house. That said overhangs can extend as far as 2 without the need for external supports. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports. I m thinking 2 8 16 o c with tile roof per his request 4 12 pitch.

The irc gives a maximum of 24 for roof overhangs. 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. A typical metal roof overhang may be 2 to 4 inches or even less. The size of the roof overhang you choose depends largely on the style of your shed s roof.

Two feet is the general maximum length for a typical roof overhang. Does this include drip edges that protrude or rain gutters or is it just the wood structure. 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. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.