Martin and jon are right that a roof overhang is the best way to protect the siding.
No overhang flat roof.
You may want one or the other or both.
Additionally forming this needs to pay attention to the edge of your roof.
Moderate climates in moderate climates there is some damage of wood decay and a roof overhang is recommended.
As a rule there are two popular methods in framing it pant or flat roof overhang and gable roof overhang.
Roof edge detail overhang extended to hide the thickness of the over roofing rigid insulation.
Types of roof overhangs.
We will protect shade the west windows with cedar awnings grates.
Because there is so little danger of water damage there is no required overhang and overhang lengths are minimal and sometimes nonexistent.
Framing the roof overhang is basically in line with the style and shape of your flooring.
There are two types of roof overhangs two consider.
However in many situations the insulation may need to be primarily or entirely below the flat roof membrane and between the roof joists if so what are the best options.
Smart vent a special roof eaves vent product that provides a 3 4 opening about 6 above the top of the roof drip edge.
With our house we are planning minimal east and west overhangs and ample south and north overhangs.
I can understand not wanting one with a flat roof but the sloped roof without overhang i never understood.
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.
Unvented flat roofs a technical discussion flat roofs have often been built with the insulation all on top of the vapor closed drainage plane as this avoids dew point condensation issues inboard of the roofing.
In general roof overhangs offer an effective solution for how to protect windows doors and entryways.
A rake is an overhang located on the gable end of your roof.
Installed a new fully adhered membrane to the top of the old board sheathing prior to adding all that rigid insulation.
No roof leaks no problems.
Ways to frame the roof overhang.
A rake overhang is created by extending the roof beyond the gables of your shed.
We love the look of the no overhang scottish style roof line as well.
No air leaks from underneath no problems.
With the west east overhangs the main use is siding window protection and keeping rain snow from foundation.
There is no good way to make that last.