Page 10 - Metal-Matters-issue-11

New generation warehouse makes waves...

‘Quantum’ curved built-up metal roof and PRIME V Rooflights were installed over the apex of the roof Leaks on the project have been avoided by the Neville Campbell of Michael Sparks Associates, added:
cladding from CA Group Limited have been installed to distribute a more balanced distribution of natural elimination of through fixings, the biggest cause “In our opinion the successful end result is due to
at the Blackburn Trading Estate in Heathrow as part daylight, reducing internal shadows and lighting costs, of water ingress in a building of this type. Issues the performance, attention to detail and installation
of development work for Canmore Developments, together with the associated CO emissions. The associated with gutter design have also been of the system by all involved in the development.
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creating a more aesthetically pleasing structure. reduced height of ‘Quantum’ lowers the internal air addressed with the requisite thickness of 1.2mm being Michael Sparks Associates and CA Group have
volume and the operational costs associated with the applied to both the steel and membrane coating, worked together for many years with many hundreds
The scheme, which encompasses a number of heating and chilling of a large structure. The building minimising any damage caused by foot traffic. The of thousands of metres of cladding installed, with very
combined warehouse and office blocks, was delivered also achieved a high level of air tightness with an air- final roof assembly has been categorised as Class few problems. Early design discussions between the
together with Winvic Construction and features a permeability rating of 1.75m .h.m @ 50 Pa. B (non-fragile) in accordance with the HSE Advisory two of us have been essential in the production of
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combination of ‘Quantum’, CA Group’s curved built- Committee for Roofwork (ACR) successful, high quality and aesthetically
up metal roof, and PRIME V, a product from the The cladding featured on the office walls was chosen guidance documentation. pleasing buildings.”
company’s rainscreen portfolio. from the PRIME portfolio, developed by CA Building
Products. Johnson explained: “PRIME represents the
David Johnson, project development engineer for CA unification of CA’s rainscreen offer. We have taken
Building Products, commented: “The developer had a our extensive know-how in this area and developed a
clear vision for this scheme from the outset. We were suite of products suitable for a range of applications.
tasked with delivering a look and feel which was far The systems have been fully tested by the Centre for
removed from the conventional warehouse, creating Window and Cladding Technology and are backed by
instead an aesthetically pleasing structure more readily meaningful guarantees.”
associated with the office side of the build.
The issue of end of life disposal costs, associated with
“We worked closely with the architects, Michael some blown foam insulations on the market, has been
Sparks Associates, and other team members avoided through the use of fibre insulation throughout
to develop a solution which not only exceeded the building. The use of fibre insulation also ensures
expectations, from an aesthetic perspective, but also that, in the event of a fire, the building itself does not
incorporated a number of sustainable features which add to the fire load and toxic smoke emissions are also
will reduce the building’s running costs, as well as dramatically reduced.
its emissions.”

According to Johnson, many of the cost saving
features on the project were achieved through the
introduction of CA Group’s ‘Quantum’ curved roof,
which has a proven track record among planning
teams and local residents due to its reduced height
and streamlined form. This reduced height translates
into a reduction in internal air volume and the
operational costs associated with the heating and
chilling of large structures.

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