CONTRACTOR
An individual or firm that agrees, usually based on predetermined terms and specifications, to provide labour and materials and to be responsible for work (a specific job, overall construction or reconstruction).
An individual or firm that agrees, usually based on predetermined terms and specifications, to provide labour and materials and to be responsible for work (a specific job, overall construction or reconstruction).
Air currents induced by the different densities of warm and cool air.
A projection or a series of step-like projections of masonry units constructed to form a decorative or supporting ledge or shelf.
A moulded projection which is usually located at the wall/ ceiling junction.
The deterioration of metal, concrete or other material by chemical or electrochemical reaction; acid-induced oxidation resulting in a loss of surface or structural integrity.
A strongly acid substance which can cause damage or injury.
In a building without a basement, an unfinished space below the ground floor which is normally enclosed by the foundation wall; an unfinished interior space of limited height, located between floors, containing ductwork, piping, or wiring.
Random hairline cracks forming a network pattern on or under a surface of plaster, concrete, glazed ceramic, paint or transparent finish.
In buildings, a framing member that is shorter than usual, as a stud above a door opening or below a window.
One or more layers of polyethylene sealed over openings into a work area or any other similarly placed physical barrier. It must be sufficient to prevent airborne contaminants in a work area from migrating into an adjacent area.