Equipment and Services Catalogue : Equipment & Services Catalogue
229 // For further information visit www.coateshire.com.au or call 13 15 52 For further information visit www.coateshire.com.au or call 13 15 52 Glossary – Common Building & Engineering Terms 29 Equipment & Services Catalogue // Glossary ACCESSORIES – gutters, ventilators, ridge capping, downpipes, flashings, brackets and the fixings. AG LINE – a perforated pipe (usually covered with a geo-textile fabric) laid behind retaining walls and other areas to catch seeping stormwater. ANGLE BRACE – in framing, a brace that runs from corner to corner to strengthen the angles of the frame. APRON FLASHING – sheeting that prevents water permeating through where a roof is pierced by a vertical surface. AS – Australian Standard, as published by Standards Australia. ARCHITRAVE – moulding surrounding a door or window opening to cover the join between the frame and the wall finish. ASTRAGAL – a small moulding with a semicircular section that projects above the surface, like a bead. It’s also metal strap fastening downpipes to walls. BACKING – the dihedral angle of a hip or shaping the top of a hip to conform to the roof planes. BAGGING – a method of finishing brickwork involving the application of a thin mortar slurry using a hessian bag or sponge. Can be painted over or left to fade in an oxide finish. Usually completed by the bricklayer. Bagging varies greatly in texture and colour and is not uniform like render. BALUSTRADE – a series of vertical members supporting a handrail of a stair, landing, platform or bridge. BARGE BOARD – inclined timbers on a roof ’s gable ends that are fixed to the rafters and cover the ends of the roof timbers. BARGE CAPPING – protective metal or timber capping for a barge board. BARGE FLASHING – the flashing between a barge board or barge capping and the roofing material to prevent water entry. BASE METAL THICKNESS (BMT) – the thickness of metal before any coatings. BT – boundary trap. BATTENS – narrow pieces fixed to walls that hold sheeting or on roofs that hold tiles, steel sheeting, etc. BEARER – a sub-floor structural timber member which supports the floor joists. BEARING – the part of the beam resting on its supports. BEARING PLATE – a plate of metal or stone carrying the weight of the beam. BELL ROOF – a bell-shaped roof made by attaching false feet to the foot of the rafters. BRACKET – a right-angle support with angle brace that usually supports a shelf or similar. An ornamental return piece fixed to the face of the string in a stair. BRIDGING – to use stiffening members between deep floor joists and roofing purlins to limit lateral deflection. BRICK VENEER – a method of construction in which a single leaf of non-load bearing wall of brickwork is tied to a timber or metal framed load bearing structure to form the external enclosure. BUILDING PAPER – waterproof paper used in construction work for insulation or as undercover on roofs to protect against the weather. BUILD-UP RIB – a rib or membrane built-up of several thicknesses, usually in brick bond. BULLNOSE – the edge of a quarter-circle shaped piece of wood or a similarly shaped section of metal roof cladding. Also, a small metal plane with its cutter close to the fore end and used for cleaning up rebates. CAMBER – to fix a horizontal structural member with a rise at its centre to counteract sagging. CANT – two inclines at an angle other than a right angle. CANTILEVER – beams supported at one end only, as in a shop awning. CAPILLARY WATER – water drawn upwards and held by surface tension. CAT LADDER – a ladder attached vertically on a wall. CEILING BATTEN – a light timber or steel member fixed to ceiling joists to which ceiling lining is then affixed. CEMENT – a finely ground inorganic powder that, mixed with water, binds an aggregate / sand mixture into a hard concrete or mortar within a few days. CHALK LINE – a long line or string used for setting out long straight lines. Coated with chalk, the ends are held taut while the centre is lifted away from the surface and allowed to spring back, leaving a line on the surface.