render coat
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scratch coat
In three-coat plastering, the first coat of plaster, which is then scratched to provide a bond for the second (brown) coat.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive
A Hire a cement mixer which will cost around pounds 30 for the week, mix one-cement-to-three sand for the scratch/undercoat and the next day mix up a one-cement-to-four sand
render coat, both of which are applied by a hawk and trowel.
In other areas walls are frequently finished in a
render coat. We do have rendered walls, most often on 1930s houses or rural cottages but these walls are often restricted to just part of the house.
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