The third in the government’s series of fire safety
tests of cladding and insulation combinations has been completed by
the BRE.
These large scale tests will allow experts to better understand
how different types of cladding panels behave with different
types of insulation in a fire. The results of the first two tests
have already been published.
This third test was of a wall cladding system consisting of
Aluminium Composite Material (ACM) cladding with a fire
retardant polyethylene filler (category 2 in screening tests)
with PIR foam insulation.
The government’s expert panel advises that the results show
that the combination of materials used in the test does not meet
current Building Regulations guidance.
There are up to 13 buildings over 18 metres tall in England known
to have a combination of ACM with a fire
retardant polyethylene filler with PIR foam insulation. Cladding
samples from each of these buildings had already failed earlier
combustibility tests conducted by Building Research Establishment
(BRE) and
their owners were sent government
advice detailing the immediate interim safety measures
that needed to be completed.
These latest test results provide building owners with further
evidence about fire risks. Government has now provided these
building owners with additional detailed
advice setting out the actions they need to take to
ensure the safety of residents. Government is working closely
with these building owners to ensure this advice is being
followed.
To further build the evidence available for experts and building
owners so they can make informed safety decisions, government has
commissioned a seventh large scale test –
testing ACM with fire
retardant polyethylene filler (category 2 in screening tests)
with phenolic foam insulation. Results of all remaining tests
will be published when they are available.
The government announced the independent
review of building regulations and fire safety on 28
July 2017. This forward looking review will examine the
regulatory system around the design, construction and on-going
management of buildings in relation to fire safety as well as
related compliance and enforcement issues.