Glossary of building terms: V

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Valley– The “V” shaped area of a roof where two sloping roofs meet. Water drains off the roof at the valleys.

Valley (Fixing Roof Tiles) – The sloping intersection of two inclined roof surfaces that meet at a re-entrant angle.

Valley flashing– Sheet metal that lays in the “V” area of a roof valley.

Valley flashing (Fixing Roof Tiles) – A strip of impervious material that is used to exclude water at the sloping intersection of the inclined roof surfaces.

Valley truss (Timber Roof Structures) – truss used to form a valley in association with standard or special trusses (usually the only type of truss which does not have structural triangulation).

Veneer– Extremely thin sheets of wood. Also a thin slice of wood or brick or stone.

Vent– A pipe or duct which allows the flow of air and gasses to the outside. Also, another word for the moving glass part of a window sash, i.e. window vent.

Verge (Fixing Roof Tiles) – The edge of a roof surface at a gable.

Vermiculite– A mineral used as bulk insulation and also as aggregate in insulating and acoustical plaster and in insulating concrete floors.

Voltage– A measure of electrical potential. South African homes are wired with 220 volt lines.