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Class A Decking: What Are Your Options?

Class A Decking: What Are Your Options?

Class A Decking: What Are Your Options?

Class A Decking: What Are Your Options?

If you’re a specifier looking for options for decking that will achieve a Class A fire rating, either for a high-rise building’s balcony or terrace, then this blog will give you a great overview of the options available.

From sustainable material choices such as aluminium and natural stone to more versatile choices like concrete and porcelain, there are multiple ways to achieve a stunning outdoor flooring solution, while still achieving building regulation compliance.

Class A Decking – Overview

Building regulations in the UK requires all external walls and specified attachments of residential buildings above 18m to be built with non-combustible materials. This means a fire rating of Class A1 or A2, s1 d0 according to BS EN 13501-1.

A1 materials are completely non-combustible whereas A2 materials have limited combustibility. However, both classifications are considered non-combustible and are permitted to be used in those circumstances, and any other scheme where the maximum fire-rating is required.

Stay away from materials labelled as ‘fire-resistant’ as these materials do not mean they are fire-rated. While these materials might not greatly contribute to a fire, they are not permitted in high-rise buildings.

You must specify Class A fire-rated materials in order to be safe, compliant, and avoid remedial actions as a consequence of a fire inspection.

Class A building materials limit the spread of fire and smoke in the event of an emergency, keeping exit walkways safe for people, and allowing firefighters faster access.

Download your guide to the latest building fire regulations for external balconies, terraces and roof gardens

Surface Material Options

Although you might not be able to specify GRP, timber or composite decking, there are still many options for decking which meet Class A fire ratings.

For a natural look paving, options such as porcelain or stone are versatile and durable. The texture can be adapted to give a variety of effects such as a wood effect porcelain or a granite look stone. The benefits of porcelain also include it being non-porous so great for standing up to rain and frost.

Concrete pavers are also a great solution, giving a practical and strong decking.

Finally, aluminium is a great class A decking option as it is modern, corrosion-resistant, and hard-wearing. There are many benefits of aluminium including it being a sustainable material.

Depending on what your aims are and the purpose of application, these surface materials have their own unique characteristics, but all give you a safe fire-rated non-combustible decking.

You can learn more in-depth about each of these Class A options in our blog “what surface materials deliver Class A Decking”.

Class A Subframes for External Flooring

For high-rise buildings, the whole external flooring system must be Class A fire-rated, not just the surface material.

The sub-frame and joists must also be non-combustible, as each component must be Class A rated and safe for specified attachments such as balconies on high-rise residential buildings over 18m. That’s what Alfresco Floors specialises in: fully compliant external flooring solutions that provide you with a complete and comprehensive Class A rated system.

Download your guide to the latest building fire regulations for external balconies, terraces and roof gardens

Conclusion: Choose Alfresco for Your Class A Decking

Whether you want a Class A aluminium decking or paving system, you are covered with Alfresco Floors.

The team at Alfresco Floors have unrivalled experience in exterior flooring. We focus our efforts exclusively on the products and solutions that we know offer the best combination of not only fire safety but price, prestige, and practicality.

To find out more about our products, call us on 020 8977 0904 or fill out the form below.

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