Open Eave Roof Detail

Mc10a down slope eave details.

Open eave roof detail. 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. Doing so raises the eave which prevents it from conflicting with the window head height. A box eave is enclosed with a soffit. 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.

Mc10 raised fascia. Mc10b eave flush wall. Mc10c low slope ventilated eave detail. An open eave has a pronounced overhang often revealing projecting roof beams or brackets.

Craftsman an architectural style often used on bungalows in the early 20th century featured. A closed eave doesn t have much of an overhang while an open eave sticks out well beyond the roof. A normal generic assembly could consist of 2x rafter tails acx plywood sheathing and 2x4 or 2x6 blocking between the rafter tails. Mc08a roof layout quick reference.

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. Mc09 suggested loading guide.