Flat Roof Overhang Detail

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.

Flat roof overhang detail.

If you are not able to use an angled soffit use one of the two flat soffit details illustrated below. Types of roof overhangs. A rake is an overhang located on the gable end of your roof. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction.

A rake overhang is created by extending the roof beyond the gables of your shed. Wi overhang roof apron gutter downspout system cont 2x8 rough fascia. You may want one or the other or both. The length of the overhang depends primarily on the climate.

This is a detail to avoid at all costs. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. 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. 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.

The siding underneath the overhang is known as the soffit. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. If you must use a flat soffit stop the flat portion of the soffit at the wall to align with the corner board. If the roof overhang is not big enough then the only way to protect these windows doors and entryways is by recessing them into the thick exterior wall or by installing special casing and flashing for each door or entryway.

Flat soffit stopping at end wall. In general roof overhangs offer an effective solution for how to protect windows doors and entryways. Without this detail water leaving the roof edge wants to run down building fascias soffits and walls sometimes even entering and damaging the structure. Overhangs add character and help your shed avoid that boxy flat look.

On 2020 09 13 by scott. There is no reason to use a pork chop eave. There are two types of roof overhangs two consider. Of course you don t need to live in a modern house to deal with a flat roof.