Some home designs do not have a soffit.
Roof overhang without soffit.
Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction.
Venting a roof without eaves.
Proper locations for another sketch of soffit construction and soffit ventilation details.
On buildings where the top of windows are close to the top of the building wall there may be insufficient space to construct an overhanging roof eave without blocking the windows.
Smart vent 6 step installation guide by dci fine homebuilding.
Un vented roof solutions to buildings with no roof overhang and which are a more distant second best approach are discussed at roof venting.
They call this a venting drip edge.
Un vented hot roof solutions.
However if the home has no soffit it is quite a different matter.
The venting drip edge seems to be the easiest and most common way to go.
Tips for roof eave venting on roofs with no overhang or soffit dci products.
Overhangs are common in most house designs providing protection against both wind and rain.
This is usually a 3 8 inch piece of plywood that is underneath the overhanging portion of the roof that extends beyond the outside wall.
It will primarily depend on the roof.