Roughcast

Roughcast

Roughcast is a coarse plaster surface used on outside walls that consists of lime and sometimes cement mixed with sand, small gravel, and often pebbles or shells. The materials are mixed into a slurry and are then thrown at the working surface with a trowel or scoop. The idea is to maintain an even spread, free from lumps, ridges or runs and without missing any background.

According to the Encyclopædia Britannica Eleventh Edition (1910–1911), roughcast used to be a widespread exterior coating given to the walls of common dwellings and outbuildings, but it is now frequently employed for decorative effect on country houses, especially those built using timber framing (half timber). Variety can be obtained on the surface of the wall by small pebbles of different colors, and in the Tudor period fragments of glass were sometimes embedded.

According to the Encyclopædia Britannica Eleventh Edition, the central tower of St Albans Cathedral, built with Roman tiles from Verulamium, was covered with roughcast believed to be as old as the building. The roughcast was removed about 1870.

Pebble-dashing is a type of roughcasting where the surface coating is of small stones, chips of stones or gravel that are thrown at a coat of wet plaster while it is still 'soft'.

Roughcasting incorporates the stones in the mix while pebbledashing adds them on top.

See also

*Plasterwork


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  • roughcast — ► NOUN ▪ plaster of lime, cement, and gravel, used on outside walls. ► ADJECTIVE 1) coated with roughcast. 2) (of a person) lacking refinement. ► VERB ▪ coat with roughcast …   English terms dictionary

  • roughcast — [ruf′kast΄, ruf′käst΄] n. 1. a coarse stucco for covering outside surfaces, as walls 2. a rough pattern or form, or crudely made model vt. roughcast, roughcasting 1. to cover (walls, etc.) with roughcast 2. to make or shape in a rough form …   English World dictionary

  • Roughcast — Rough cast , v. t. 1. To form in its first rudiments, without revision, correction, or polish. Dryden. [1913 Webster] 2. To mold without nicety or elegance; to form with asperities and inequalities. [1913 Webster] 3. To plaster with a mixture of… …   The Collaborative International Dictionary of English

  • Roughcast — Rough cast , n. 1. A rude model; the rudimentary, unfinished form of a thing. [1913 Webster] 2. A kind of plastering made of lime, with a mixture of shells or pebbles, used for covering buildings. Shak. [1913 Webster] …   The Collaborative International Dictionary of English

  • roughcast — /ˈrʌfkast / (say rufkahst) noun 1. a coarse plaster mixed with gravel, shells, or the like, for outside surfaces, usually thrown against the wall. 2. a crudely formed pattern or model; a rough. –adjective 3. made of or covered with roughcast;… …  

  • roughcast — roughcaster, n. /ruf kast , kahst /, n., v., roughcast, roughcasting. n. 1. Also called spatter dash. an exterior wall finish composed of mortar and fine pebbles mixed together and dashed against the wall. Cf. pebble dash. 2. a crudely formed… …   Universalium

  • roughcast — noun plaster of lime, cement, and gravel, used on outside walls. adjective 1》 coated with roughcast. 2》 (of a person) lacking refinement. verb coat with roughcast …   English new terms dictionary

  • roughcast — n., adj., & v. n. plaster of lime and gravel, used on outside walls. adj. 1 (of a wall etc.) coated with roughcast. 2 (of a plan etc.) roughly formed, preliminary. v.tr. (past and past part. cast) 1 coat (a wall) with roughcast. 2 prepare (a plan …   Useful english dictionary

  • roughcast — I. transitive verb ( cast; casting) Date: circa 1501 1. to plaster (as a wall) with roughcast 2. to shape or form roughly II. noun Date: 1579 1. a rough model 2. a plaster of lime mixed with shells or pebbles used for covering buildings …   New Collegiate Dictionary

  • roughcast — 1. noun a) A crude model. b) A rough surface finish, as of a plaster or stucco wall. Syn: pebbledash 2. verb a) To shape crudely. b) To apply a roughcast finish to a …   Wiktionary

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