Advice for building owners: large-scale wall system test 5

Advice for building owners on the large-scale wall system test with ACM cladding with a limited combustibility filler with PIR foam insulation.


Advice for building owners: large-scale wall system test 5

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The government is undertaking large scale testing of cladding systems to understand better how 3 different types of Aluminium Composite Material (ACM) panels behave in combination with 2 different types of insulation in a fire.

This note sets out advice to building owners following the results of the large scale test for a wall system including:

  • ACM with a limited combustibility filler (category 1 in screening tests)
  • PIR foam insulation

This should be read alongside the government’s explanatory note on the large scale wall systems testing.

This series of tests initially included 6 combinations of cladding systems. To further build the evidence available for experts and building owners so they can make informed safety decisions, on 8 August government commissioned a seventh large scale test – testing ACM with fire retardant polyethylene filler (category 2 in screening tests) with phenolic foam insulation.

Published 14 August 2017