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BriggsAmasco nurses paediatric hospital roof back to health

9 Jul 12 BriggsAmasco has installed a complex, inverted roofing system at the new two storey paediatric extension for Chelsea and Westminster Hospital, overcoming the severe logistical challenges of working on an active hospital site to deliver the project on budget and on time.

For the 935m2 roof, client NHS Foundation Trust and main contractor BAM Construction turned to the UK’s leading waterproofing and roofing specialist, BriggsAmasco. The company installed a system comprising IKO PermaTEC Hot Melt System, insulation ballast and IKO Green Roof, all of which had to be completed to an exceptionally high standard and adjacent to the fully operational hospital.

During the project, BriggsAmasco was faced with a number of challenges – co-ordinating deliveries with BAM to ensure no congestion of the A&E emergency route.  With all plant and materials craned to roof level, BriggsAmasco also ensured there was no interruption to any of the staff or patients at this busy hospital.

Once on the roof, the BriggsAmasco’s specialist team demonstrated their ability to work alongside other trades and carry out works to the highest standards of safety, ensuring at all times they did not clash with other trades’ work. To ensure all operatives were protected whilst working at height BriggsAmasco installed a ManSafe fall protection system.

All roofs had several different types of penetrations coming through the concrete decking to which the team had to waterproof.  These consisted of rainwater outlets, rooflights, handrail posts, ladder posts and trellis posts.  There were also a number of flashings to roof areas in addition to cladding and sheeting.  A highly skilled team was required to install curved galvanised metal upstand details which ran underneath the render and over the top of the waterproofing.

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“BriggsAmasco were selected primarily because of their extensive experience, and in house expertise from detailing and design, procurement and management of the

works on site.” commented Richard Owen, Design Manager at BAM Construction. “This combined with the known quality of their workforce provided a winning formula for this element of the works. We were very impressed with the quality of the roofing installation.”

The installation of this long lasting, high performance waterproofing system was completed in December 2011 as part of Phase 2 of the project with the new wing opening in May 2012.  All aspects of the roofing contract were completed to a high standard, with BriggsAmasco’s installation team exceeding expectations to deliver a roofing project befitting of one of the UK’s most advanced paediatric hospitals.

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