We are often asked to clarify the fire rating of Gebrik and can confirm that the system has been tested to BS8414 (Parts 1 & 2), which is a test to demonstrate how it reacts in fire, via the spread of flame and its resistance against collapse when typically used on a multi-storey building over 18m; and EN13501-1:2007+A1:2009, which demonstrates its reaction to fire.
As a result of the BS8414 Part 2 tests, a BR135 report has been produced by the BRE, which confirms as a result of the relative tests that the system can be used on sfs substrates of buildings >18m; and the EN13501-1:2007+A1:2009 classification confirms a classification of B-s1,d0.
We do not sell the system to provide fire resistance per se therefore it is not typically required to be tested to BS476:Part 21: 1987 Clause 8. However light gauge steel framing systems, lined with calcium cement sheathing boards, such as those used in our fire test (ie Y-Wall), can be proven to provide 2 hrs resistance when tested to the BS476 test. When combined with our BR135 report it is therefore reasonable to expect that as Gebrik will not contribute to fire spread, a minimum 2hr resistance should be expected.
Gebrik has been accepted by warranty providers, building control and clients for use on numerous buildings >18m and of course, you could have the entire project-specific build-up tested if required (and we would be pleased to supply you with materials should you think it necessary).
For buildings over 18m, the BBA certificate 07/4403 states that it is imperative that the build-up tested is adhered to for the BBA certificate to be valid (and accepted by warranty providers).
(For more detailed information please refer to our Fire Statement, which is available on request)