Flat Roof Overhang Framing

Before the roof sheathing goes on the open framing provides easy access for attaching the return blocking and the nailers for the rake soffit.

Flat roof overhang framing.

They also help to frame windows on upper stories. A rake on the gable end of the roof can be created with the construction of additional roof framing. It can be framed like a floor system with horizontal framing members at 16 19 or 24 o c. That is their functional purpose.

The last pieces to go in were nailing blocks above the ledger for the back of the return and at the bottom edge of the soffit for attaching the rake 20. On the other edge a gable ladder is constructed which is formed from two rafters with noggins between that support the end rafter. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. The noggins extend back for a series of three rafters.

Due to the steeper angle of gable roof the maximum width of the eaves is narrower than other shed styles. Avoid gable ends that are over 8 in. The original roof had no overhang. Let s have a look at two different popular roof styles.

Flat roof framing is relatively straightforward. To 18 in depending on the style of the building. Thick and the overhang from the side wall set between 12 in. For slanted roof sheds overhangs add character and facilitate proper drainage.

For gabled roofs the roof rafters extending beyond the wall caps creating an angled roof overhang on the eaves. This video will. Start with roof framing. 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. Wide especially when the eave overhang is less than 12 in. Due to the shed s design a significant amount of rain runs off the rear of the shed. Roof overhang with a new cornice will make this building look like it was added on in 1900 not 1960.

2x framing wood joists timber framing laminated beams steel concrete or sips. 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. When designing a gable end eave without a return the dimensions to look at are the width of the trim set between 6 in. Flat roofs can be used to create box shapes cantilevered into daring overhangs or can be planted to create usable vegetated gardens.

Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. 05. Of course you don t need to live in a modern house to deal with a flat roof. However there is also an architectural purpose to them.

Depending on the span many different materials can frame a flat roof.