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A ZinCo green roof from Alumasc
has helped the new Oakham Co-Op become one of the most
energy efficient retail stores in the country. |
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Designed by KPW architects for Midlands Co-Operative
Society, the £4.5 million building replaced the original
store which was destroyed by fire in July 2008. The new
building incorporates a range of energy saving features
including the ZinCo green roof which is planted with local
species to create a wildlife habitat. |
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Rainwater is also harvested from
the roof and solar panels are used to heat the store’s hot
water supply. It is anticipated that the building will
achieve a reduction in CO2 emissions from 103kg/m2/year
to just 40kg/m2/year. |
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Alumasc’s ZinCo extensive green
roof features sedum-based plants that will require minimal
irrigation and maintenance. Like all ZinCo green roofs, the
roof offers notable ecological benefits, providing a natural
habitat for plants and wildlife, while helping to reduce air
and noise pollution, cutting carbon emissions and assisting
with rainwater retention and attenuation. ZinCo green roofs
vary from extensive and biodiverse types such as the one
chosen for Oakham Co-Op, to intensive roofs, which are
suited for areas of public and recreational use and require
more tending. |
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The green roof was installed by
Leicester-based Envelope Contractor Torclad Ltd, over Alumasc’s
Derbigum single layer waterproofing system, to achieve the wind load
and U value requirements of the project. To meet the demands of the
fast track construction programme, the system was mechanically fixed
onto the structural deck, with the end and side laps welded by torch
application. Hot air welding can also be used as an alternative, to
suit the application. An additional 1000m2 of Derbigum
was installed with tapered insulation to the lower flat roof area,
housing the solar panels. |
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Derbigum was specified for its
exceptional long-term performance and durability, warranted
for 25 years. The BBA Approved system is manufactured under
the ISO 14001:2004 and EMAS Environmental Management
Standards and is fire rated F.AA to BS476 Pt3 (EN1187 Pt4),
the highest available rating, which allows unrestricted use
under Building Regulations. |
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The main contractors at the Midland
Co-Op in Oakham were The Tomlinson Group. |
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