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Aluminium windows and doors manufactured in accordance with BS 4873 1986 'Specification for aluminium alloy windows' are designed and constructed to meet specific levels of performance. This document describes the site procedures which are advisable to ensure that this performance is actually achieved and also general advice on how to maintain the performance after occupation of the building.
Now incorporated into the Council for Aluminium in Building.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
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