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Building Products April 2017

COVER STORY | KNAUF INSULATION | ADVERTORIAL Knauf Insulation has developed an innovative use of virgin rock mineral wool to create a green roof system that is up to three times lighter than traditional soil-based systems when fully saturated. Green roofs have now become a staple part of what many roofing contractors’ offer, driven in part by local government and planning departments pushing for more installations, particularly in urban areas, due to the range of benefits they bring. In fact, you would probably be hard pushed to find a building element that has more to offer. For the building itself, green roofs provide good sound insulation and, dependent upon the type of waterproofing, they have been shown to triple the life expectancy of the roof. For the wider environment, the biodiversity of green roofs restore the ecological cycle, reduce storm water 6 BUILDING PRODUCTS | APRIL 2017 run-off and absorb CO2, whilst providing relief from concrete construction in urban areas and even providing additional usable green space. However, they can also spell hard work. Installing a 1,000m2 green roof for example, can involve transporting, lifting and distributing over 100 tons of soil substrate. Therefore, a new soilless system from Knauf Insulation could be music to a roofing contractor’s ears. Urbanscape® has been designed to transform both the transport and installation. The super lightweight system utilises an innovative Green Roll Substrate in the place of soil, which, unlike previous rock mineral wool based solutions is made from binder free rock mineral wool


Building Products April 2017
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