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Programme
Rapid construction necessitates the sequencing of many disparate trades on the building envelope. To speed up internal fit-out, the roof is frequently completed before many potentially disruptive wet and mechanical trades have been completed.
Examples include rendering of elevations above roof level, scabbling of concrete surfaces adjacent or over the roof and installation of atrium systems. When such work cannot be avoided it is essential to protect the finished single ply roof against potential damage by other trades.
On completion of each day’s work, or whenever work is interrupted, the roof must be made secure and a “day” joint made in order to prevent water penetration into the roof construction and/or wind damage. This procedure is more easily facilitated if work proceeds from roof high-points and towards low-points.
Mechanical and electrical services are often subject to location and capacity change during a building project. Single ply roof systems are unique in their adaptability to such change. However, the extent of design flexibility likely to be required, should be established at an early stage to avoid complex detailing or sequencing during construction.
© 2006 Sarnafil Ltd. Legal Disclaimer
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