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eaves
eaves (n.)
1.the overhang at the lower edge of a roof
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Merriam Webster
EavesEaves (?), n. pl. [OE. evese, pl. eveses, AS. efese eaves, brim, brink; akin to OHG. obisa, opasa, porch, hall, MHG. obse eaves, Icel. ups, Goth. ubizwa porch; cf. Icel. upsar-dropi, OSw. opsä-drup water dropping from the eaves. Probably from the root of E. over. The s of eaves is in English regarded as a plural ending, though not so in Saxon. See Over, and cf. Eavesdrop.]
1. (Arch.) The edges or lower borders of the roof of a building, which overhang the walls, and cast off the water that falls on the roof.
2. Brow; ridge. [Obs.] “Eaves of the hill.” Wyclif.
3. Eyelids or eyelashes.
And closing eaves of wearied eyes. Tennyson.
Eaves board (Arch.), an arris fillet, or a thick board with a feather edge, nailed across the rafters at the eaves of a building, to raise the lower course of slates a little, or to receive the lowest course of tiles; -- called also eaves catch and eaves lath. -- Eaves channel, Eaves gutter, Eaves trough. Same as Gutter, 1. -- Eaves molding (Arch.), a molding immediately below the eaves, acting as a cornice or part of a cornice. -- Eaves swallow (Zoöl.). (a) The cliff swallow; -- so called from its habit of building retort-shaped nests of mud under the eaves of buildings. See Cliff swallow, under Cliff. (b) The European swallow.
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⇨ definición de eaves (Wikipedia)
eaves (n.)
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eaves (n.)
edge of the roof; eaves[ClasseHyper.]
Wikipedia
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This article's lead section may not adequately summarize all of its contents. (May 2011) |
The eaves of a roof are its lower edges.[1] They usually project beyond the walls of the building to carry rain water away.
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"Eaves" is derived from Old English efes and is both the singular and plural form of the word.[citation needed]
The primary function of the eaves is to throw rain water off the walls and to prevent the ingress of water at the junction where the roof meets the wall. The eaves may also protect a pathway around the building from the rain, prevent erosion of the footings and reduce splatter on the wall from rain as it hits the ground.
The secondary function is to control solar penetration; the eaves overhang can be designed to adjust the building's solar heat gain to suit the local climate, the latitude and orientation of the building, refer to passive solar building design.[2]
The eaves overhang may also shelter openings to ventilate the roof space.[1]
Aesthetic, traditional or purely decorative considerations may prevail over the strictly functional requirements of the eaves. The Arts and Crafts Movement influenced the American Craftsman tradition, which has very wide eaves with decorative brackets, for which there is not necessarily a real functional need; likewise the Italianate eaves, shown on the right.
The eaves may terminate in a fascia, a board running the length of the eaves under the tiles or roof sheets to cap off and protect the exposed rafter ends and to provide grounds on which to fix gutters. At the gables the eaves may extend beyond the gable end wall by projecting the purlins and are usually capped off by bargeboards to protect the wall and the purlin ends.
The underside of the eaves may be filled with a horizontal soffit fixed at right angles to the wall, the soffit may be decorative but it also has the function of sealing the gap between the rafters from vermin and weather.
Eaves must be designed for local wind speeds as the overhang can significantly increase the wind loading on the roof.[3]
The line on the ground under the outer edge of the eaves is the eavesdrip, or dripline, and in typical building planning regulations defines the extent of the building and cannot oversail the property boundary.
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