Are you dealing with a high rise building that was involved in government testing? If so, read on for an important update Following the tragic events at Grenfell Tower, a series of BS 8414 tests were commissioned by the government on specific combinations of insulation and ACM cladding panel. Based on the results of the tests, a number of high rise buildings were identified as having a problem, and guidance was issued. BUT BS 8414 tests are only valid for the precise combination and configuration of materials tested. Changing a small detail, can change how a system will perform. Yet the government has labelled complete classes of constructions as pass / fail based on a single test. Since then, further BS 8414 tests have been carried out, to add to the bank of knowledge about what constitutes an acceptable façade system for buildings with storeys over 18 metres. The results may have an impact on the necessity, or nature, of any remedial work that is being planned. In particular the Government tested: • FR cored ACM cladding with a 20 mm gap between the panels. This passed with stone wool insulation, and failed marginally with phenolic and PIR insulation. However, a 20 mm gap between ACM panels would be uncommon practice in the UK. Kingspan Insulation has now tested: • Alpolic FR cored ACM cladding, with 10 mm and 4 mm gaps between the panels, and Kingspan Further information on the Kingspan range is available on: +44 (0) 1544 387 384 firstname.lastname@example.org www.kingspaninsulation.co.uk Pembridge, Leominster, Herefordshire HR6 9LA, UK ® Kingspan, Kooltherm and the Lion Device are Registered Trademarks of the Kingspan Group plc in the UK and other countries. All rights reserved. Kooltherm K15 phenolic insulation. These tests were successful. Therefore, if you have phenolic insulation with an FR cored ACM, but the joints between the ACM panels are 10 mm and not 20 mm, then the “fail” label and the need for remedial works may be invalid. Similarly, if you are looking for a solution to replace a PE cored ACM installed over Kingspan Kooltherm K15 phenolic insulation, it might be as simple as replacing the PE cored ACMs with Alpolic FR cored ACMs with a gap (between ACM panels) size of 10 mm or less. This could provide an acceptable alternative solution to heavier options, helping to address potential structural limitations. The BRE holds a register of systems that have been successfully tested to BS 8414: www.bre.co.uk/regulatory-testing. Kingspan Insulation’s new test data will be added to that website when BRE have signed off the test reports for the above tests. NB, this can take several weeks. In the meantime, please contact Kingspan Insulation for further information.
RCI January 2018
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