As a rule there are two popular methods in framing it pant or flat roof overhang and gable roof overhang.
No roof overhang.
I have battled with the same overhang no overhang design.
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.
Additionally forming this needs to pay attention to the edge of your roof.
Martin and jon are right that a roof overhang is the best way to protect the siding.
We love the look of the no overhang scottish style roof line as well.
Here are 10 ideas to add curb appeal to a house with a roof overhang.
The overhang at the bottom of the slope is a simple overhang.
A typical metal roof overhang may be 2 to 4 inches or even less.
And a wide overhang will divert rainwater away from the foundation which helps keep a basement dry.
Metal is usually installed on rafters or strip sheathing rather than the solid decking used under other materials.
Some slight overhang is recommended in conjunction with a drip edge flashing to prevent water from getting under the roofing and onto underlying wood.
Framing the roof overhang is basically in line with the style and shape of your flooring.
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.
That said overhangs can extend as far as 2 without the need for external supports.
With the west east overhangs the main use is siding window protection and keeping rain snow from foundation.
They are essential for framing and shading windows reducing splashback and getting rain to fall far enough away from the foundation.
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.
There is no good way to make that last.
However the suggested width of an overhang is between 12 and 18 for eaves and no more than 8 for rakes.
With our house we are planning minimal east and west overhangs and ample south and north.
It feels that there is a common opinion among architects that this minimal look is the thing.
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.
Roof overhangs might look relatively routine but there is a lot of design thinking that goes into creating the optimal dimensions for each one.
One of best films i ever saw was of a hawaii roof with overhangs lifted in one piece total off the building.
There is also no gutter in the detail so you will be effectively routing rain down your wall.
Whereas the overhang on the gable end is a gable ladder.
