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  2. Leader head - Wikipedia

    en.wikipedia.org/wiki/Leader_Head

    Leader heads or conductor heads [ 1] are components of a roof drainage system which are known by different names, but they all mean the same. They are funnel-shaped elements, connected in most cases to a gutter, and from there to a downspout. [ 2] The downspouts take the water run off from the roof that is collected in the gutters to the ground ...

  3. Rain gutter - Wikipedia

    en.wikipedia.org/wiki/Rain_gutter

    The water drains into a gutter that is fed into a downpipe. A flat roof should have a watertight surface with a minimum finished fall of 1 in 80. They can drain internally or to an eaves gutter, which has a minimum 1 in 360 fall towards the downpipe. [11] The pitch of a pitched roof is determined by the construction material of the covering ...

  4. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    A sanitary sewer is an underground pipe or tunnel system for transporting sewage from houses and commercial buildings (but not stormwater) to a sewage treatment plant or disposal. Sanitary sewers are a type of gravity sewer and are part of an overall system called a "sewage system" or sewerage. Sanitary sewers serving industrial areas may also ...

  5. Siphon - Wikipedia

    en.wikipedia.org/wiki/Siphon

    Metal baffles at the roof drain inlets reduce the injection of air which increases the efficiency of the system. [68] One benefit to this drainage technique is reduced capital costs in construction compared to traditional roof drainage. [66] Another benefit is the elimination of pipe pitch or gradient required for conventional roof drainage piping.

  6. Downspout - Wikipedia

    en.wikipedia.org/wiki/Downspout

    A downspout, waterspout, [1] downpipe, drain spout, drainpipe, [2] roof drain pipe, [3] rone[4][5][6][7] or leader is a pipe for carrying rainwater from a rain gutter. The purpose of a downspout is to allow water from a gutter to reach the ground without dripping or splashing down the building structure. Downspouts are usually vertical and ...

  7. Cricket (roofing) - Wikipedia

    en.wikipedia.org/wiki/Cricket_(roofing)

    Cricket (roofing) A cricket or saddle is a ridge structure designed to divert water on a roof around the high side of a large penetration, typically a skylight, equipment curb, or chimney. [1] In some cases, a cricket can be used to transition from one roof area to another. On low-slope and flat roofs with parapet walls, crickets are commonly ...

  8. French drain - Wikipedia

    en.wikipedia.org/wiki/French_drain

    A French drain[1] (also known by other names including trench drain, blind drain, [1] rubble drain, [1] and rock drain[1]) is a trench filled with gravel or rock, or both, with or without a perforated pipe that redirects surface water and groundwater away from an area. The perforated pipe is called a weeping tile (also called a drain tile or ...

  9. Roof - Wikipedia

    en.wikipedia.org/wiki/Roof

    Roof. A roof (pl.: roofs or rooves) is the top covering of a building, including all materials and constructions necessary to support it on the walls of the building or on uprights, providing protection against rain, snow, sunlight, extremes of temperature, and wind. [1] A roof is part of the building envelope.