Open Eaves Roof Detail

The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall.

Open eaves roof detail.

When designing an open eave with roof trusses make sure that you raise the heel of the truss and use a thicker top chord. With open eaves use a sealant such as caulking to cover gaps or enclose the underside of the roof overhang. If a sprocketted or bell cast detail is used then eaves courses should be no lower than the minimum recommended roof pitch. A closed eave has very little or no overhang extension beyond the siding.

Closed eave where an existing soffit is in place is typical of remodeling projects. The wallplate is secured to the internal wall separated by dpc. Closed eaves with angled soffit closed eaves with flat soffit and no raised heel closed eaves with flat soffit and raised heel. A box eave is enclosed with a soffit.

Types of eaves. Fix timber fillet to set eaves courses of tiles at same pitch as general tiling. In open eave construction embers can and do accumulate between blocking and joists and can ignite these members if sufficient accumulation occurs. To determine exactly what the rafter tail will look like i always make a full size drawing on a scrap of plywood of all the eaves elements including framing and finish materials see illustration above.

An open eave has a pronounced overhang often revealing projecting roof beams or brackets. Closed eaves with angled soffit. Open eaves with trusses. Rotted or deteriorated wooden soffits should be removed before installation of new vinyl soffits.

A roof can come to an end in basically three ways. The open eave blocking likely included vents so remember to add an. Doing so raises the eave which prevents it from conflicting with the window head height. The cavity is closed with a proprietary cavity closer.

The eaves detail shows where the roof members and coverings meet the wall of the dwelling. In an open eave design the roof rafters or joists and roof sheathing are visible. Open eave construction where the rafters or trusses are exposed is common on new construction. The wallplate is then used to secure the rafter to.

From left to right.