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.

Open eaves roof detail.

From left to right. The cavity is closed with a proprietary cavity closer. An open eave has a pronounced overhang often revealing projecting roof beams or brackets. The next important aspect is to detail the eaves allowing adequate ventilation and simple methods to achieve this are indicated in figs.

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. A roof can come to an end in basically three ways. 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. Open eaves with trusses.

Open eaves with ventilating rafter tray. The wallplate is then used to secure the rafter to. Closed eaves with angled soffit closed eaves with flat soffit and no raised heel closed eaves with flat soffit and raised heel. 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. Download this typical eaves detail cad drawing for use in your architectural detail design cad drawings. A closed eave has very little or no overhang extension beyond the siding. The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall.

Types of eaves. Rotted or deteriorated wooden soffits should be removed before installation of new vinyl soffits. In an open eave design the roof rafters or joists and roof sheathing are visible. The wallplate is secured to the internal wall separated by dpc.

Closed eaves with angled soffit. A box eave is enclosed with a soffit. Closed eave where an existing soffit is in place is typical of remodeling projects. The eaves detail shows where the roof members and coverings meet the wall of the dwelling.