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WEBINAR | Cool Roofs in the context of Compliance and Quality
Posted: 28/09/2016 11:01
Wednesday 28 September 2016, 10:00 am Brussels time (CET)

Increased urban temperatures have an important impact on the energy consumption of buildings mainly during the summer period. The urban heat island is the most documented phenomenon of climatic change. The heat island is related to the increase of urban temperatures compared to the suburban areas because of the positive heat balance.
Rejection of solar gains is the aim of passive cooling strategies in any type of building and any climatic region. Cool materials work by reflecting solar radiation and therefore rejecting solar heat gains at the opaque external surfaces of the building. Heat transfer to the internal space by conduction is therefore reduced, while the magnitude of the reduction will be determined mainly by the solar radiation intensity, the temperature difference between inside and outside, as well as the constructional characteristics of the roof. The extent of cool materials usefulness is dependent on the severity of external conditions and  internal heat gains.
The effect of cool materials in hot climatic conditions are studied by various researchers. In most cases a reduction of the cooling load of almost 20-40% is revealed by the application of cool roofs while a considerable indoor comfort improvement is noticed. Moreover, the energy efficiency attributed to cool roofs ranges between 2.5-10 kWh/m2 (with average of 6.25 kWh/m2) of roof. For houses and offices that are not air conditioned, cool-coloured roofing materials offer comfort, typically at very reasonable costs. Assuming an emission rate of 750 gCO2/kWh of electricity savings, the annual CO2 savings ranges from 1.9 to 7.5 kg/m2 of roof area with 4.7 kg/m2 of roof surface as an average.
The aim of the present webinar is to outline the efforts performed in the European context for the promotion of cool roofs, including aspects of compliance and quality of the works.

Panellists and Topics
Denia Kolokotsa, Chair of the Board of Directors of the European Cool Roofs CouncilRecent progress on cool materials in Europe: The role of the European Cool Roofs Council
Afroditi Synnefa, Technical Committee Leader of the ECRCCool roofs standards and the ECRC product rating programme
Heinz Meier, Sika Services AG – Building Systems & Industry, SwitzerlandCool roofs markets and practical experiences
Russell Evans, Business Development Manager, Huntsman International LLCPolicy and regulatory framework for cool roofs at the European and international level
How to attend
Participation is free, but prior registration is required. Please register here.
QUALICHeCK webinars are powered by the WebEx platform. You will need a Windows or Mac computer with a sound card and speakers or headphones. You may already test WebEx on your computer by joining a test meeting.
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