Rain gutter
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A rain gutter, eavestrough, eaves-shoot or surface water collection channel is a component of a water discharge system for a building. It is necessary to prevent water dripping or flowing off roofs in an uncontrolled manner for several reasons: to prevent it damaging the walls, drenching persons standing below or entering the building, and to direct the water to a suitable disposal site where it will not damage the foundations of the building. In the case of a flat roof, removal of water is essential to prevent water ingress and to prevent a build-up of excessive weight.
Lead guttering: slate and pitched valley gutter flow into parapet gutter, with downpipe and overflow
Eaves gutter and downpipe
Decorative lead hopper head dated 1662, Durham Castle
a: Rainwater gutter b: Endcap c: Hopper d: 112° bend f: Downpipe g: Manifold
Copper in architecture
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Copper has earned a respected place in the related fields of architecture, building construction, and interior design. From cathedrals to castles and from homes to offices, copper is used for a variety of architectural elements, including roofs, flashings, gutters, downspouts, domes, spires, vaults, wall cladding, and building expansion joints.
The Nordic Embassies, in Berlin, Germany.
Copper facade at the Oak Park Public Library, U.S.
Engraving on architectural copper encasement at the Yin Ruins Museum, Anyang, North Henan Province, People's Republic of China.