No Roof Overhang

Most modern cabin architecture out there seems to be eaveless meaning that there is no or very minimal roof overhang eaves that go beyond the building structure.

No roof overhang.

They are essential for framing and shading windows reducing splashback and getting rain to fall far enough away from the foundation. I have battled with the same overhang no overhang design. No only does a roof overhang protect a facade from the ravages of weather it also can act like an awning to shade a patio or deck. That said overhangs can extend as far as 2 without the need for external supports.

However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes. As a rule there are two popular methods in framing it pant or flat roof overhang and gable roof overhang. Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood. The roof overhang occurs in a similar way to the pent roof in that the top chord of the roof truss projects past the wall plate by the desired amount.

With our house we are planning minimal east and west overhangs and ample south and north. Ways to frame the roof overhang. We love the look of the no overhang scottish style roof line as well. Framing the roof overhang is basically in line with the style and shape of your flooring.

It feels that there is a common opinion among architects that this minimal look is the thing. I can understand not wanting one with a flat roof but the sloped roof without overhang i never understood. Whereas the overhang on the gable end is a gable ladder. The overhang at the bottom of the slope is a simple overhang.

Roof overhangs might look relatively routine but there is a lot of design thinking that goes into creating the optimal dimensions for each one. With the west east overhangs the main use is siding window protection and keeping rain snow from foundation. On the lake side of the wasatch range in utah there are almost no buildings built with overhangs due to the frequent strong and steady winds. Martin and jon are right that a roof overhang is the best way to protect the siding.

There is no good way to make that last. There is also no gutter in the detail so you will be effectively routing rain down your wall. Overhangs can vary from a few inches to a few feet depending on preference. A typical metal roof overhang may be 2 to 4 inches or even less.

Gable roofs even with no overhang are at a disadvantage in high winds. Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials. And a wide overhang will divert rainwater away from the foundation which helps keep a basement dry.