Detailed explanation of some of the more commonly used terms in the Cast Stone Industry demystifying the jargon of Technical Terms and offering simple definitions of the wording used by our Staff.
The crisp edge where two adjacent surfaces of a cast stone unit meet.
Product normally produced with cement and aggregate to give appearance similar to Natural Stone, see Cast Stone.
Concrete material normally formed from sand, gravel and grey cement which can be used for the unexposed parts of cast stone. Addstone products are normally Homogenous i.e. do no utilise a Backing Mix.
Sill to a window projecting outwards from the wall of a building forming an alcove to a room. The most common inside angles for bay windows are 90, 135 and 150 degrees and if supported by a corbel or bracket the bay window is known as an oriel window.
Any material manufactured with aggregate and a cementitious binder that is intended to resemble the appearance of, and be used in a similar way, to quarried stone. Cast stone is either homogenous or consists of a facing mix and backing mix. Often referred to as Reconstructed Stone, Precast Stone, Reconstituted, Artstone or Artificial Stone.
Components used to decorate and protect the top of walls, parapets or balustrade. Traditionally designed to drive rainwater clear of surfaces beneath by way of the coping stone's overhang and drip grooves.
Stone component for use above a Window Opening which is purely decorative in nature(non-loadbearing) and must be fully supported on a suitable steel lintel. Normally decorative heads have little or no reinforcement.
Continuous groove (normally half round) cast into the underside of an overhanging edge of cast stone products to re-direct the path of rainwater away from the wall below.
See Semi Dry Cast Stone.
Single continuous mix throughout the section of the component, i.e. without a different material for Backing Mix.
Vertical side of a door or window frame or other type of blockwork/brickwork opening.
Building component designed to protect and decrate a brick or blockwork pillar. Often referred to as Pillar Caps or Cappings, standard sizes are single brick, brick and a half and two brick.
Engineered product made from crushed stone bound together by cement mix, see Cast Stone.
See Reconstituted Stone.
Also described as a Saddle Coping or Twice Weathered, this is a Coping Stone that slopes to either side of a central high point, i.e. resembling the pitch of a roof.
Manufacturing process using minimal water content to create fine textured face resembling sawn natural stone.
The underside of a cast stone element such as an arch or lintel.
Cill with no Stooled Ends normally used to only fit inside the brickwork/window opening (without over-running into the brickwork or blockwork).
Cill with flat seatings, usually at both ends, that are built in to the brickwork or blockwork normally by 102.5mm (half a metric brick).
When referring to a Window or Door Opening this dimension is the size of the gap in the blockwork or brickwork.
Slip Cills are fitted within this gap whilst Stooled Cills over-run into the Brickwork or Blockwork at their ends, usually by 102.5mm.
Equally Heads or Lintels will normally have 102.5mm bearing added to the Structural Opening at each end.