Maximum Unsupported Roof Overhang

They are essential for framing and shading windows reducing splashback and getting rain to fall far enough away from the foundation.

Maximum unsupported roof overhang.

Total load psf duration factor live load psf notes. Because this style of a shed has a flat roof it can facilitate a wider overhang which is ideal for storage. Roof overhangs might look relatively routine but there is a lot of design thinking that goes into creating the optimal dimensions for each one. Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports.

Do the calcs or better yet put overhangs on the roof trusses to support the ply. Roof load width rlw and floor load width flw can be determined from as1684 or from the images below. Two feet is the general maximum length for a typical roof overhang. 3 4 or 1 might possibly work but 3 8 is often used.

Rafter span tables use these tables to determine lengths sizes and spacing of rafters based on a variety of factors such as species load grade spacing and pitch. Over roof insulation the gable overhang has been cut flush with the wall sheathing. Further note that the 3 layers of 2 inch rigid. These diagrams may also be used to determine roof load width for floor joists.

This can make extensive roof overhangs more trouble than they are worth in all but the harshest climates. Doing so keeps basements and crawlspaces dry and it also helps to. Also regardless of thickness i can guarantee you that the ply will be drooping and look terrible in a couple of years. Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles.

Theseoverallspansarebasedonnds 01 with 4 nominal bearing each end 24 o c. Also note that a new fully adhered membrane is installed on the original roof deck replacing the one installed 17 years ago is folded down to catch the top edge of the wall water control layer. Roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20 construction or rain not snow load 55 1 15 40 snow 47 1 15 30 snow 40 1 15 20 snow 40 1 25 20 rain or constn.