This section will provide you with more information on the testing and quality of Vulkatec products. All blowable Vulkatec roof substrates are RAL-certified and conform to current FLL guidelines. Vulkatec is also a member of the German construction industry association Fachwerkvereinigung Bauwerksbegrünung e.V. (FBB). Please do not hesitate to contact us with your enquiries!
RAL CertificationDesign support - Quality
For green roof quality assurance, choose RAL-certified products. You can readily recognise RAL-certified products as they now bear this new symbol:
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You can be assured of high quality if you use products bearing this symbol. Control quality standards that are stricter than the FLL guidelines (German guidelines for the design, creation and maintenance of green roofs) have been defined in the interests of users to provide even greater quality assurance.
Current Vulkatec RAL Certificate (RAL-GZ 253)
Total pore volume is not a specified parameter, but is used to determine aeration at maximum moisture content and pF 1.8.The volume of water available to plants can be estimated on the basis of maximum water retention capacity, less approximately 10 - 15% of volume for the water retained in fine pores at pF >4.2.The specifications for vegetation substrates are, as a rule, relevant to substrates with defined laboratory compaction.Suitability and control tests are described in section 12.
The fbr was formed for the purpose of promoting the increased utilisation of industrial waste water and rainwater in order to reduce drinking water use and to cut down waste water loss, while encouraging increased use of rainwater in accordance with environmental requirements. The fbr brings together those with interests in the areas of industrial waste water and rainwater utilisation, rainwater usage and maintenance of the natural water cycle. The fbr looks to the future, and ensures that its aims are compatible with the needs of the environment, science and research. The members of the fbr form special interest groups in which the various aspects of the reutilisation of industrial waste water and rainwater are considered.
The fbr was founded in November 1995 as a response to the controversial and, in some instances, inappropriate, discussions on the utilisation of rainwater that took place at that time. It recognised that there was a need to coordinate and promote research and developments, and to collect and distribute data. An important consensus among the founding members was that a unified and well-informed approach should be taken towards the concept of industrial waste water and rainwater utilisation in order to encourage the basic idea. The association provides a central institution through which its members can obtain training and information, and also form contacts with others who are active in or are interested in this area.