roughcast

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roughcast

[′rəf‚kast]
(civil engineering)
A rough finish on a surface; in particular, a plaster made of lime and shells or pebbles, applied by throwing it against a wall with a trowel.

rock dash

An exterior stucco finish containing crushed rock, large pebbles, or shells that are imbedded in a stucco base; also called pebble dash or slap dash.
References in periodicals archive ?
It used to be standard practice but the existing roughcast has to be sound and all boss sections cut out and filled.
If your house is not well insulated and you want to go ahead with the roughcast, I would look at having the house covered in insulation board and then roughcast the board.