Promat

Promat: Maximising structural fire protection

  • 10 Oct 2022

Leading fire protection specialist, Promat, has launched PROMATECT®-H, a high-performance fire-resistant calcium silicate board tested to EN 13381-3: 2015. Find out more about it here…

A magnifying glass has been brought over the construction industry as a result of health and safety controversies, such as those found as part of the Grenfell Inquiry. But improving fire protection is far from just an external challenge, compartmentation firestopping and structural fire protection need to be at the forefront of everybody’s minds if we are serious about improving fire safety.

It is vitally important buildings are designed to allow for safe evacuation, and that fire and smoke cannot spread from one room to another. Crucial to this is ensuring buildings do not fall victim to premature failures, such as the wear and tear of materials used in construction.

Promat

Fire resistance in concrete structures

Concrete is a major component of many buildings constructed in the UK. While concrete does provide a degree of natural fire resistance, if exposed to fire concrete can experience both mechanical and chemical changes. 

These changes include the potential for explosive spalling where excessive pressure within concrete – resulting from water evaporation and thermal expansion – causes it to crack and break into layers. This can expose reinforcing steel (rebar). Extreme heat over 260°C will cause rebar to lose its tensile strength, resulting in structural failure of reinforced concrete.

There are two main ways to increase the fire resistance of concrete structures: using coatings such as cementitious sprays – but these can be time consuming and messy to apply on site – or fire protection board.

An ideal solution for architects and specifiers

No matter which option is chosen to increase the fire resistance of concrete, it is essential to ensure the passive fire protection specified is fully-tested as part of a system at extreme temperatures to ensure superior fire resistance.

Promat‘s PROMATECT®-H is a high-performance fire-resistant calcium silicate board tested to EN 13381-3: 2015. It can protect concrete elements for up to 240 minutes making it the ideal solution for architects and specifiers. This means that the use of the board in a building will ensure that concrete columns, walls, beams, and slabs comply with all existing fire regulations and UK Building Regulations.

David Roulstone, Passive Fire Protection Product Manager at Promat, says: “Although many building materials have an element of natural resistance to fire, as architects and specifiers, it is crucial to minimise risk further.

“By using PROMATECT®-H you can comply with UK Building Regulations, increase reinforcing steel and concrete’s ability to with stand overheating, and most importantly, ensure you are maximising the time occupants have to exit a dangerous building in the event that a fire does occur.”

Ticking all the boxes

PROMATECT®-H offers architects, main contractors, sub-contractors, and other specifiers the option to upgrade structural elements. This offers a more flexible approach to internal fit outs or refurbishment projects as ceilings and partitions can also be easily created using Etex fire protection boards. As an added advantage, the boards also have a smooth surface to achieve a great finish with paints and standard joint fillers.

With a high resistance to water, PROMATECT®-H will not deteriorate when used in damp or humid conditions. This enables the board to be installed and left semi-exposed so it can be brought into the construction schedule at an early stage, making the build process faster and helping to keep to project timelines.

At just 12mm or 25mm, PROMATECT®-H is slim and therefore has minimal impact on the overall dimensions of a building. Being available in two thicknesses also means that PROMATECT®-H covers the full range of applications and fire resistance requirements.

For more information on PROMATECT®-H boards and other Promat passive fire protection products, get in touch with the Promat team.

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