No Overhange Roof

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.

No overhange roof.

Roof overhangs might look relatively routine but there is a lot of design thinking that goes into creating the optimal dimensions for each one. There is no good way to make that last. I was hoping you would discuss applying roof overhangs to a persist style home that is intentionally built with no overhangs to simplify the installation of control layers. There is also no gutter in the detail so you will be effectively routing rain down your wall.

With the west east overhangs the main use is siding window protection and keeping rain snow from foundation. Thanks martin another super article and some great examples of successful overhangs. I have battled with the same overhang no overhang design. One of best films i ever saw was of a hawaii roof with overhangs lifted in one piece total off the building.

Overhangs can vary from a few inches to a few feet depending on preference. Roof eave venting on roofs with no overhang or soffit how to correct improper or inadequate attic or under roof ventilation in buildings detecting and correcting attic condensation and preventing ice dam leaks in buildings how to correct improper or inadequate attic or under roof ventilation in buildings. Perhaps martin is right houses should have roof overhangs. Roof overhangs don t only protect the walls but they are very useful in green building.

They are essential for framing and shading windows reducing splashback and getting rain to fall far enough away from the foundation. Authoritative expert building diagnostic and repair advice toxic black mold and. With our house we are planning minimal east and west overhangs and ample south and north. But there are a lot of reasons that go beyond aesthetics why one might not.

Doing so keeps basements and crawlspaces dry and it also helps to. However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes. Martin and jon are right that a roof overhang is the best way to protect the siding. That said overhangs can extend as far as 2 without the need for external supports.

Gable roofs even with no overhang are at a disadvantage in high winds. I can understand not wanting one with a flat roof but the sloped roof without overhang i never understood.