What is a fire-cracked brick?
A fire-cracked brick split during firing, sounds cracked when tapped and should be kept out of fair-faced and exposed work.
What is a hollow-sounding brick?
A hollow-sounding brick has internal voids from a faulty firing and rattles or sounds dull when tapped instead of ringing clear.
What are RAL colours?
RAL is a standardised colour system that lets you order and check a colour unambiguously, whatever the manufacturer or material.
What is a wheel window?
A wheel window is a round window divided by heavy stone spokes radiating from a central hub to the outer ring.
What are radials?
In construction, radials means two things: the radian as a unit of angle, and the radial streets running out from a city centre.
What is a radial brick?
A radial brick is a wedge-shaped fired brick made for curved masonry such as round chimneys, wells and columns.
What is a furring batten?
A furring batten is a timber batten fixed to a wall or ceiling to carry boards, panelling or a plaster lath background.
What is a castellated beam?
A castellated beam is a steel beam with hexagonal web openings, made by cutting a rolled section in a zigzag, offsetting the halves and rewelding them.
What is a scratch coat?
A scratch coat is the first, coarse coat of mortar on masonry or concrete, levelling the background and giving the finish coat a key.
What is a plasterer’s float?
A plasterer’s float is the flat hand tool used to level, compact and rub up freshly applied plaster or render.