A roof can come to an end in basically three ways.
Open eave roof detail.
Mc10c low slope ventilated eave detail.
Mc10b eave flush wall.
Doing so raises the eave which prevents it from conflicting with the window head height.
A closed eave doesn t have much of an overhang while an open eave sticks out well beyond the roof.
For more information on eave construction or other fire code requirements please refer to the county s wildland urban interface summary document pds 664 or contact the county s building department fire services division at 858 565 5920.
Mc08 roof layout.
An open eave has a pronounced overhang often revealing projecting roof beams or brackets.
Mc10a down slope eave details.
Mc08a roof layout quick reference.
Open eaves with trusses when designing an open eave with roof trusses make sure that you raise the heel of the truss and use a thicker top chord.
Mc09 suggested loading guide.
A box eave is enclosed with a soffit.
When you look at the open eave detail you see the rafter tails the blocking and the roof sheathing that extends beyond the exterior wall.
Mc10 raised fascia.