Open Eaves Roof Detail

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 roof detail. Doing so raises the eave which prevents it from conflicting with the window head height. If a sprocketted or bell cast detail is used then eaves courses should be no lower than the minimum recommended roof pitch. 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.

With a soffited eave design the roof rafters and sheathing are hidden through the use of a panel or boards that extend horizontally from the edge of the roof typically being attached to the bottom of the fascia back to the exterior wall. Open eave construction where the rafters or trusses are exposed is common on new construction. Closed eaves with angled soffit. From left to right.

Open eaves with trusses. Types of eaves. An open eave has a pronounced overhang often revealing projecting roof beams or brackets. A roof can come to an end in basically three ways.

A box eave is enclosed with a soffit. Download this typical eaves detail cad drawing for use in your architectural detail design cad drawings. 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 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 cavity is closed with a proprietary cavity closer. The eaves detail shows where the roof members and coverings meet the wall of the dwelling. The wallplate is then used to secure the rafter to.

The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall. The next important aspect is to detail the eaves allowing adequate ventilation and simple methods to achieve this are indicated in figs. 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 with ventilating rafter tray.