Flat Roof Overhang Framing

Start with roof framing.

Flat roof overhang framing.

Wide especially when the eave overhang is less than 12 in. 05. For slanted roof sheds overhangs add character and facilitate proper drainage. Flat roof framing is relatively straightforward.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. An eave is the edge of the roof that overhangs the face of a wall and normally projects beyond the side of a building. It can be framed like a floor system with horizontal framing members at 16 19 or 24 o c. The noggins extend back for a series of three rafters.

For gabled roofs the roof rafters extending beyond the wall caps creating an angled roof overhang on the eaves. On the other edge a gable ladder is constructed which is formed from two rafters with noggins between that support the end rafter. 2x framing wood joists timber framing laminated beams steel concrete or sips. Roof overhang with a new cornice will make this building look like it was added on in 1900 not 1960.

Due to the shed s design a significant amount of rain runs off the rear of the shed. Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles. So this is why we left the plywood long utilizing the full 8 sheets. Avoid gable ends that are over 8 in.

Flat roofs come in many shapes and sizes which include parapet roofs roof decks and green roofs to name just a few of the options available. Let s have a look at two different popular roof styles. Eaves form the overhang to distribute water clear of the walls. However there is also an architectural purpose to them.

Depending on the span many different materials can frame a flat roof. To 18 in depending on the style of the building. The original roof had no overhang. That is their functional purpose.

In the direction of the roof span the roof member simply cantilevers past the wall plate. The framing below however is far from flat so lots of shimming will be required. Of course you don t need to live in a modern house to deal with a flat roof. Flat roofs can be used to create box shapes cantilevered into daring overhangs or can be planted to create usable vegetated gardens.

A rake on the gable end of the roof can be created with the construction of additional roof framing. Thick and the overhang from the side wall set between 12 in. Before the roof sheathing goes on the open framing provides easy access for attaching the return blocking and the nailers for the rake soffit. This video will.

They also help to frame windows on upper stories.