Open Eaves Roof Detail

Open eaves with trusses.

Open eaves roof detail.

An open eave has a pronounced overhang often revealing projecting roof beams or brackets. Rotted or deteriorated wooden soffits should be removed before installation of new vinyl soffits. Closed eave where an existing soffit is in place is typical of remodeling projects. Closed eaves with angled soffit closed eaves with flat soffit and no raised heel closed eaves with flat soffit and raised heel.

The wallplate is secured to the internal wall separated by dpc. The next important aspect is to detail the eaves allowing adequate ventilation and simple methods to achieve this are indicated in figs. 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.

Types of eaves. The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall. The cavity is closed with a proprietary cavity closer. From left to right.

When designing an open eave with roof trusses make sure that you raise the heel of the truss and use a thicker top chord. A roof can come to an end in basically three ways. Closed eaves with angled soffit. Doing so raises the eave which prevents it from conflicting with the window head height.

The wallplate is then used to secure the rafter to. A closed eave has very little or no overhang extension beyond the siding. A box eave is enclosed with a soffit. 8 23b allows any water which may have penetrated through the tile to run down the roof slope into the gutter in the normal manner.

Open eave construction where the rafters or trusses are exposed is common on new construction. If a sprocketted or bell cast detail is used then eaves courses should be no lower than the minimum recommended roof pitch. Open eaves with ventilating rafter tray. Download this typical eaves detail cad drawing for use in your architectural detail design cad drawings.