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.

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 then used to secure the rafter to. A roof can come to an end in basically three ways. Doing so raises the eave which prevents it from conflicting with the window head height.

Open eave construction where the rafters or trusses are exposed is common on new construction. The wallplate is secured to the internal wall separated by dpc. Download this typical eaves detail cad drawing for use in your architectural detail design cad drawings. Closed eaves with angled soffit.

Open eaves with trusses. An open eave has a pronounced overhang often revealing projecting roof beams or brackets. 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. In an open eave design the roof rafters or joists and roof sheathing are visible.

From left to right. If a sprocketted or bell cast detail is used then eaves courses should be no lower than the minimum recommended roof pitch. A box eave is enclosed with a soffit. The eaves detail shows where the roof members and coverings meet the wall of the dwelling.

The cavity is closed with a proprietary cavity closer. Rotted or deteriorated wooden soffits should be removed before installation of new vinyl soffits. The next important aspect is to detail the eaves allowing adequate ventilation and simple methods to achieve this are indicated in figs. 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 eaves with ventilating rafter tray. The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall. Closed eave where an existing soffit is in place is typical of remodeling projects. When designing an open eave with roof trusses make sure that you raise the heel of the truss and use a thicker top chord.