Roof Eaves Design

Another is to create a custom gravel stop drip edge flashing piece that changes profile along the length of the roof to compensate for the change in pitch.

Roof eaves design.

Roof overhangs at the eaves and rakes protect the walls below from rain and sun. Before manufactured trusses the simplest roof construction involved extending exposed rafter tails beyond the walls of the house. Fix a plywood board or proprietary tray to provide continuous support to underlay to prevent water retaining troughs. The design of your eave is dictated by the construction of your roof.

Roof eaves are extensions of rafter structure outside of the house frame. Individual rafter extensions block extensions are effective when you have a proper slope of the roof. An open eave has a pronounced overhang often revealing projecting roof beams or brackets. I recently built a small outbuilding with a 6 in 12 pitch roof that offers a perfect example for showing the process i use to build eaves and rakes.

Trusses streamline construction but it s important when using them to make sure the resulting eave works with the design of your building. The intent is to create a uniform edge on the outside but a varying profile on the inside along the sloping roof. A roof can come to an end in basically three ways. A box eave is enclosed with a soffit.

If a sprocketted or bell cast detail is used then eaves courses should be no lower than the minimum recommended roof pitch. But are they really necessary. Your angled roof overhang at the house eaves is a very common design sketch at left. As long as the air path up under the roof is not blocked by insulation perforated soffit panels on the under roof side of that overhang will work just fine.

With composite siding such as boral s truexterior siding over a ventilated rain screen and with properly executed flashing at the windows and doors the walls on the fhb house will be able to handle rain just fine. Start with the rafter tails 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. A closed eave has very little or no overhang extension beyond the siding.

One way is to design the roof to have a parapet wall covering the roof edge. Aug 19 2020 explore steve straughan s board roof eaves followed by 137 people on pinterest.