Product category:
Insulation
News Release from: BASF | Subject: Colorcoat Urban roof
Edited by the Buildingtalk Editorial
Team on 23 January 2008
Low carbon black Colorcoat Urban roof
Solar heat reflective coloured roofing that could help reduce the Urban Heat Island effect has been installed onto the unique eco-build project, The BASF House.
The low carbon black Colorcoat Urban roof from Corus features a BASF Coil Coating infused with specially selected BASF pigments that have solar heat reflectant properties - creating a cool roof By lowering the home's heat absorption through the roof, energy consumption can be cut and the lifetime of the roof is extended because of a lower temperature strain
This article was originally published on Buildingtalk on 8 Jun 2007 at 8.00am (UK)
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"It can also contribute to reducing any local environmental heat island effect, a growing problem in urban areas particularly highlighted by the Greater London Authority," says Claire Farrar, BASF's project manager.
"Traditional roofing materials absorb solar energy, generating heat that is transported by thermal conduction into the roof and into the building and by convection to the surrounding air".
"Due to the heat reflective properties of the roof, the BASF House absorbs less solar heat and so less heat is generated into the local environment".
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The BASF House is part of the University of Nottingham's Creative Energy Homes Project.
The project at Nottingham is one of the first UK applications of a coated roof using heat management pigments on a single dwelling domestic property.
The system uses a new enhanced version of BASF Coil Coatings' PLASTICERAM.
Using their in-house developed computer programme, CoolSim, BASF calculates the best combination of pigments to add to a chosen paint colour to maximise the solar reflection.
"BASF Coil Coatings worked in conjunction with Corus to develop a brand new product for the Colorcoat Urban roof," said BASF Coatings' Philip Green.
"It was important for us to develop a new product that would be super-durable in terms of UV stability and corrosive properties, whilst also adding the functional benefit of heat reflection".
A terracotta colour has been used at the Creative Energy Homes Project site, in keeping with the traditional roofing tile in the area.
But BASF Coil Coatings and Corus have developed a range of different matt colours that open up new possibilities in urban building design and aesthetics.
"Traditionally the most heat absorbing colours greys and black roofing colours have been avoided in warmer climates".
"The new product means darker roofs are now a real possibility".
"The roof type is already widely used elsewhere in Europe and the USA," explained Ms Farrar.
The Colorcoat Urban roof was cut to fit on-site.
It was then fixed onto the sub-structure of SIPs (Structural Insulated Panels) used to build the first floor and roof structure.
With a U-Value of only 0.15 the low carbon environmental credentials of the roof are backed by Corus who can provide full traceability and composition information for all elements of the material and system.
Compared to using eco-concrete roof tiles, using a Colorcoat Urban roof has saved approximately 2 tons of CO2.
The roof is BS6920 approved, contains 20% recycled content, is 100% recyclable and has a 40-year BBA certificate backed guarantee from Corus.
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