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Glossary of Architectural Terms

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Arcade

A series of arches.

Architrave

The lowest of the main divisions of an entablature (See Orders). Also the moulded trim surrounding a door or window.

Ashlar

Squared, hewn stone laid in regular courses with fine joints. Ashlar imitation -- wood siding cut and planned to resemble ashlar.

Balcony

A platform projecting from an exterior or interior wall of a building above ground level. Enclosed by a railing or balustrade and supported usually on brackets.

Baluster

A small pillar or column supporting a railing.

Balustrade

Sometimes called a verge board. A board, often ornately decorated, covering the ends of projecting roof timbers where a pitched roof overhangs a gable.

Batten

A strip covering a vertical joint between vertical boards. Hence Board and Batten.

Bay

A structural opening for a door or window, making up one visual division in a wall.

Bay Window

A projecting bay with windows that forms an extension to the floor space of the interior rooms. On the outside a bay window extends usually to the ground level, distinguishing it from an oriel window which emerges from the building somewhere above ground level. A bay window may be one or more storeys in height.

Bead

A small, convex moulding.

Belfry

That part on a tower or turret where bells are hung.

Bell Cast

With flared, overhanging eaves, bell-shaped.

Bell Tower

See Belfry

Belt Course

A horizontal "belt" formed by projecting course or courses of brick or stone, in a masonry wall, or, of mouldings, in a wood sided wall.

Belvedere

A raised turret or lantern on the top of a house, to afford a view. Sometimes called a Look-out.

Bend

A small, convex moulding.

Board and Batten

See Batten

Boomtown

A false front making a roofline, usually on a commercial building.

Bow Window

A curved bay window taking the form of a segment of a circle in plan.

Bracket

Angular supports at eaves, doorways and sills. In Lunenburg, brackets are often massive and ornately carved. See also Console and Modillion.

Broken Pediment

See Pediment.

Bump

In Lunenburg, a local vernacular expression for an overhanging dormer or frontispiece.

Butress

A mass of masonry or brickwork built against a wall to give it stability. Buttresses on wooden buildings are usually false and added for decorative effect only.

Canopy

A projecting cover over a door usually supported by brackets.

Cantilever

A structural member which projects beyond the line of support.

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