SAFETY & SECURITY 81
Architects, clients, building control and other specifi ers are increasingly insisting on fi re test certifi cates
Uncovering the role of EXAP Based on our own experience of what was being requested by way of fi re test evidence, while also consulting with accredited fi re test houses such as Warringtonfi re,
Sika
embarked on a project that has seen a substantial amount of time, fi nance and resource invested in a solution that covers ranges of system permutations. With tests and test data extrapolations only able to be done by accredited fi re test houses, it became clear that there was already an established and recognised solution to cover the myriad of roofi ng systems that Sika offers. Fire tests on individual roofs/roof coverings are now carried out in accordance with CEN/TS 1187, the results from this testing are then classifi ed in accordance with EN13501-5. CEN/TS 16459 External fi re
exposure of
roofs and roof coverings – Extended applications of test results from CEN/TS 1187 provides bodies like Warringtonfi re with methodology or ‘rules’ for optimising the number of tests required to cover the maximum fi eld of application. This methodology is what’s commonly termed an ‘EXAP’ – Extended Application, while CEN/TS 16459 provides the means to classify
a range of permutations to EN13501-5. Far from an easy way out of testing, the process is demanding because it still involves physical testing to CEN/TS 1187 and of course this must still be passed. However, it does allow for tests to be done in increments and to then cover the range in between. Sika already had a large body of test data available, which has been a huge advantage in what has been a mammoth undertaking spanning more than two years.
Sika Sarnafi l single ply and beyond In October 2021, we were delighted to announce that Sika had completed Extended Application Assessments, testing to CEN/ TS 1187:2012 Test method 4 for the entire Sika Sarnafi l range of PVC single ply membranes.
Subsequently, the most
AVCL, thickness of PIR insulation 50 mm and beyond, up to a 70° pitch and on any structural substrate. With Sika Sarnafi l roof systems classifi ed
common Sika Sarnafi l roof systems are now all classifi ed under BS EN 13501-5 as BROOF
as BROOF(t4), we’re able to demonstrate and facilitate regulatory compliance for fi re safety and satisfy current market demand.
ADF07_Sika Ltd_Safety & Security - Smoke & Fire
Protection_DPSAdv.indd 3 ADF JULY 2022 (t4). This covers every membrane type,
classifi cation – which indicates the highest external fi re performance for roofs - means that specifi ers and other stakeholders can use Sika Sarnafi l on their roofi ng projects with a very high degree of confi dence, assured that they’re complying with fi re regulations. Working with an accredited, independent fi re test house (the only people who are permitted to undertake any degree of desktop/extrapolation studies now) also clearly removes the ability for anyone else to interpret or extrapolate the fi re test data that may have been practised in the past. Not only is it a clear way forward in terms of mitigating roof fi re risk, but it is also a great step towards helping support those with the heavy responsibility of ensuring people’s safety by increasing the confi dence and reassurance specifi ers are looking for. Continuing to strengthen Sika’s position as an expert and leader in testing and compliance, we now have plans to extend the initiative across the entire Sika roofi ng range, starting fi rst with liquid-applied membranes and Sikabit bituminous membranes.
Having this comprehensive BROOF
01707 394444
enquiries@uk.sika.com
www.sika.co.uk/roofi ng
04/07/2022 12:14
WWW.ARCHITECTSDATAFILE.CO.UK (t4)
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84
