Screw & Washer System to Batley Town Hall Alternatively the system can be used on an ad hock basis for the main affected areas, to suit budget constraints. We would recommend that this system be adopted on the entire area of loose Ceilings or Barrel Vaults. All cracks should be carefully cut-out and filled using fine casting plaster, with the addition of jute scrim soaked in the same material, if the crack is very wide. Plaster mouldings can also be re-secured in the same way, sometimes using the same or smaller diameter washers to achieve the same result. The countersunk washer holes are then fine filled to blend with the existing finish using fine casting plaster. Then to pilot drill and countersink screws and 30mm diameter washers through the face plaster and into the joists, thus lifting-up the plaster and re-securing. Our remedy would be to first establish and mark-out the position of the joists above on to the face plaster. Screw & Washer System – In areas of bad cracking and sagging, a ceiling may require additional support with the aid of propping and mechanical fixing back to the Joists. The system is also a much more cost effective solution compared to renewal. Our system retains the original plasterwork while keeping the existing integrity of the building intact, providing visibility & protection of original working methods, thus preserving rather than replacing historic workmanship. Our system does not include using plaster backing-up, which only serves to add unnecessary weight and water to an already unstable ceiling. Plaster Restorations have developed a unique system of re-securing loose ornamental ceilings back to their original fixings, in a monolithic operation. RE-SECURING LOOSE LATH & PLASTER CEILINGS
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