As a rule there are two popular methods in framing it pant or flat roof overhang and gable roof overhang.
No overhang roof.
Smart vent a special roof eaves vent product that provides a 3 4 opening about 6 above the top of the roof drip edge.
Framing the roof overhang is basically in line with the style and shape of your flooring.
Problems when roof has no overhang the design of many older houses omits eaves which.
With our house we are planning minimal east and west overhangs and ample south and north overhangs.
We will protect shade the west windows with cedar awnings grates.
With the west east overhangs the main use is siding window protection and keeping rain snow from foundation.
That keeps the roof runoff off of the siding and the siding seems to handle direct rain without a problem.
No air leaks from underneath no problems.
The roof soffits are at floor level and are usually the most convenient place to install the lower vents.
There s no overhang soffit but on three sides i have a 6 wide half round gutter system.
Additionally forming this needs to pay attention to the edge of your roof.
Roof edge detail overhang extended to hide the thickness of the over roofing rigid insulation.
We love the look of the no overhang scottish style roof line as well.
Venting solutions for roofs with no overhang or soffit install special roof intake venting products that work at the lower edge of the roof decking underneath the first course of shingles.
The lack of a gutter or overhang on the back as in 23 s link does mean that the windows on that wall get more direct rainwater and i ve had some minor moisture problems with the wood windows as a result.