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 unmodified polyethylene filler (category 3 in screening tests)
- stone wool insulation.
This should be read alongside the government’s explanatory note on the large scale wall systems testing.