There is a growing demand for BROOF (t4) certified roofing systems, especially since the tragic Grenfell Tower incident in 2017. Keep reading to find out more information on fire safety ratings.

In this article, we will discuss:

• What is BROOF (t4) rating?
• BROOF (t4) certified flat roofing system
• FAQs
• Quick Summary

If you have been seeing BROOF (t4) in roofing system names but are not sure what it is, keep reading, as we will discuss what BROOF (t4) is in more detail.

What is BROOF (t4) rating?

British Standard BS476-3

Fire safety is measured by two things, spread of flame and penetration of flame. An A to D scale is used by British Standard BS476-3 to measure both of these fire safety aspects. Flat roofing systems are rated with 2 letters. If a roofing system has achieved BROOF(t4) rating, that means it has been rated either AA, AB, or AC for penetration of flame and spread of flame. This would mean that it has a high level of fire resistance.

European test standards, BS EN 13501-5

BROOF certifications are provided by BS EN 13501-5. T1, t2, t3, and t4 symbolise the different tests used in 4 different countries in Europe. T4 is referencing the UK tests. The UK tests have stricter standards than the other ones, so take care to choose a roofing system that has the t4 certification.

BROOF (t4) Criteria

If a roofing system has achieved BROOF (t4) certification, it means that it has been proven that flames would not penetrate the roof before 60 minutes. It also means that the roof would burn for less than 5 minutes after flames are withdrawn. Thirdly, the roofing system would have demonstrated that flame spread is less than 0.38 metres across the area that is burning.

BROOF (t4) certified flat roofing system

Below is a flat roofing system that we can offer for your projects. It has 25 years warranty and is BROOF (t4) certified. All components in this system must be kept the same as listed for the BROOF (t4) certificate to be valid, as it has been tested as a whole system.

FAQs

What does BROOF (t4) measure?

BROOF (t4) measures how efficiently a flat roofing system can resist flames and spread of flames.

Where can I find a flat roofing system that is BROOF (t4) certified?

Wonderbuilds offers a 25-year safe to torch BROOF (t4) certified roofing system. Contact us at admin@wonderbuilds.co.uk for more information.

Does it matter if the certification is t1, t2, t3, or t4?

Test 1 (t1) is for Germany, test 2 (t2) is for Scandanavia, test 3 (t3) is for France, and test 4 (t4) is for the UK. In the UK, the BROOF certification must have t4 at the end, as the tests in the other countries are different.

Quick Summary

• BROOF (t4) certifications are important in the roofing industry to ensure fire prevention
• BROOF (t4) are specific tests that follow British standards
• Wonderbuilds offers Safe2Torch BROOF (t4) System for roofing projects