1 Scope
This British Standard gives recommendations for the design, construction, care and maintenance of roofs with a flat or curved surface, at a pitch not greater than 10° to the horizontal, with a continuously supported flexible waterproof covering. The supporting structure of such roofs is either dense and heavy (such as a concrete slab), or consists of framing members supporting a lightweight deck of metal or of timber-based material.
NOTE Provided that the design conditions are similar, many of the recommendations contained in this code of practice apply to roofs at pitches greater than 10° and to those designed with multi-functional finishes.
This British Standard is intended for use by surveyors, architects, system designers, principal contractors, contractors and clients.
This British Standard does not apply to cold stores where the roof is directly over the conditioned space and high temperature enclosures.