Flat Roof Built In Gutter Detail

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Flat roof built in gutter detail.

Unfortunately being unseen often results in neglect. Built in gutters also referred to as box gutters are considered a concealed roof drainage system. Gutters can also be installed to work in tandem with a scupper system. Of course you don t need to live in a modern house to deal with a flat roof.

This flat roof system is still used in some residential applications because of its affordability and fire resistance. The 3 most common drain systems of a flat roof. Flat roofs have unique architectural characteristics that make them desirable in many situations. In reality a flat roof isn t fully level and flat roofs built for gutters should direct water to one or more sides where the gutters are installed.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped 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. Gutters are often a viable option for flat roofs directing water on the outside of the structure to downspouts. Most often used in commercial and industrial applications this flat roof system contains layers of waterproof membrane such as a treated fiberglass basemat tar and gravel to seal the flat roof surface.

The main issues are having a gutter lining that is seamless ie similar construction to a flat roof in solvent welded plastic or rubber and also it should be designed so that the front lip of the gutter is lower than the back by a decent margin so if it gets blocked the water overflow is outwards and it can t come back into the building by backing up under the roof finish. 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. Often when a home has built in gutters such as the types i ve described the roof structure or soffit flattens out at the eaves in order to contain the gutter system. Flat roofs of this type are usually finished in steel roof sheet and fall towards a special type of gutter called a box gutter.

They are ideal for climates that don t experience large quantities of rain and moisture. Since they are not readily visible they typically don t alter the historic character of buildings and don t detract from or conceal decorative cornice details. A rooftop garden or additional outside living space are the top reasons people choose flat roofs.