Open Eaves Roof Detail

Types of eaves.

Open eaves roof detail.

Open eaves with trusses. Closed eave where an existing soffit is in place is typical of remodeling projects. A box eave is enclosed with a soffit. Doing so raises the eave which prevents it from conflicting with the window head height.

The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall. The wallplate is then used to secure the rafter to. The eaves detail shows where the roof members and coverings meet the wall of the dwelling. A roof can come to an end in basically three ways.

Fix timber fillet to set eaves courses of tiles at same pitch as general tiling. Open eaves with ventilating rafter tray. Closed eaves with angled soffit closed eaves with flat soffit and no raised heel closed eaves with flat soffit and raised heel. Download this typical eaves detail cad drawing for use in your architectural detail design cad drawings.

The cavity is closed with a proprietary cavity closer. 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. From left to right.

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. 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. The wallplate is secured to the internal wall separated by dpc.

Rotted or deteriorated wooden soffits should be removed before installation of new vinyl soffits. A closed eave has very little or no overhang extension beyond the siding. Closed eaves with angled soffit. In an open eave design the roof rafters or joists and roof sheathing are visible.