Flat Roof Overhang Detail

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof.

Flat roof overhang detail.

A rake overhang is created by extending the roof beyond the gables of your shed. There is no reason to use a pork chop eave. 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. 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. The length of the overhang depends primarily on the climate. Types of roof overhangs. On 2020 09 13 by scott.

I note that was an easier job than yours because that building sports no gutters just a nice 24 roof overhang. Wi overhang roof apron gutter downspout system cont 2x8 rough fascia. Overhangs add character and help your shed avoid that boxy flat look. This is a detail to avoid at all costs.

Of course you don t need to live in a modern house to deal with a flat roof. 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. 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. You may want one or the other or both.

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. Overhangs are common in most house designs providing protection against both wind and rain. There are two types of roof overhangs two consider. A rake is an overhang located on the gable end of your roof.

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. Of course a drip edge should be flat on the. If you are not able to use an angled soffit use one of the two flat soffit details illustrated below.