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Site practice notes. Lightweight plasters. Bonding. Skimcoat . Board finish. Basecoat plaster. Floating coat. Advantages . Can be floated and finished in one day. Three times lighter than sand and cement. Lightweight plaster has better insulation value than sand and cement. .
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Lightweight plasters • Bonding. • Skimcoat. • Board finish. • Basecoat plaster. • Floating coat.
Advantages • Can be floated and finished in one day. • Three times lighter than sand and cement. • Lightweight plaster has better insulation value than sand and cement.
Internal plastering • Scud all walls. • Stick plasterboard slab to underside of window lintel. • Set angle beads around window ensuring they are level and plumb. • Apply render and straighten with “straight edge” ensuring all angles are straight. • Float walls with wooden or fibreglass float. • Insert four or five panel pins through the top of float. • Devil float” wall. • Skim walls when cured.
Internal surfaces • Sand and cement render. • Bonding. • Plasterboard. • Floating coat. • Basecoat plaster.
Plastering terms • Aggregate. • Suction. • Arris. • Additive • Ashlar jointing. • Dado. • Crazing. • Curing. • Dubbing out. • efflorescence. • green suction • Scudding.
Quoin stones • Fix a prepared rule to the corner of the wall allowing 18mm thickness for render. • Fix a second rule 450mm away from corner. • Apply a bed of render between rules and float. • The stones are then marked both horizontally and cut out. • The stones are then cut vertically and every second stone is halved and surplus material is cut away. • The process is repeated on the opposite side corner. • Make good with float.