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VMZINC hits the heights at Heron Tower
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Heron Tower is undoubtedly set to become one of the best known landmarks on the central London skyline. The 230 metre high, 46 storey building is a glass and stainless steel clad structure on which the VMZINC PLUS standing seam system has been used on the two main roof areas. It is among the tallest buildings in which the warm roof system has been used, the 'compact roof' approach having been taken in conjunction with Foamglas®.
The roofs occupy the 38th and 41st floors, on which the Restaurant, Sky Bar and external terraces are situated. As VMZINC PLUS needs no supporting ventilation, views over the roofs are not spoiled by unsightly vents across the span.
Precise wind loading calculations were a primary consideration, but at such a height it was just as important that the specified metal presented no visual interference to aircraft. VMZINC’s pre-weathered Quartz-zinc® was a perfect choice as its natural patina continues to develop over time. As a result, zinc also offers an exceptional standard of colour retention, with minimal maintenance requirements.
VMZINC’s Paul Carter added, “Due to the careful planning and regular flow of communication between all parties, the project ran without issue and those that are lucky enough to drink or dine at this landmark building can enjoy uninterrupted views of the London skyline and the zinc roof for many years to come. The installation reflects the highest contracting standards.”
In addition to cellular glass, VMZINC PLUS can be used with mineral wool, PIR and composite insulation boards. 0.7 mm thick panels are available in either straight or curved profile in Natural, QUARTZ-ZINC® , ANTHRA-ZINC® and PIGMENTO® colours. Sheets of up to 13 metres in length can be installed using specially designed clips which do not penetrate the surface. Specialist metal roofing contractor Andy Bell of Bell Zinc and Copper Roofing said of the project, “Working at such height meant that wind rather than rain was the predominant problem. All work was carried out using full restraint harnesses and cargo nets to ensure that nothing could fall from the roof. The VMZINC standing seam system is normally straightforward to fix but in this case, the installation time was considerably longer. The end result, however, is a striking advertisement for zinc”.
