A Guide to Fire-Rated Decking and Cladding Materials

Whether you’re planning a residential deck, a commercial terrace, or incorporating cladding into your architectural design, understanding the principles and options of fire-rated materials is crucial for ensuring the longevity, safety, and compliance of your project.

In the following guide, we delve into the fundamentals of fire-rated materials, exploring the various types of decking and cladding options available on the market. By the end of this, we aim to empower you with the knowledge needed to make informed decisions based on your specific project requirements.

Understanding Fire Ratings

Fire-rated decking and fire-rated cladding materials play a pivotal role in mitigating the risk of fire incidents in outdoor spaces. To make informed decisions about materials suitable for specific applications, it’s essential to understand the Euroclass system — a European standard that categorises the fire performance of construction products, including decking materials.

• Euroclass A1 and A2: These classifications represent the highest level of fire resistance. Materials falling under A1 and A2 have minimal to no contribution to fire and no production of flaming droplets or particles. They are suitable for areas with stringent fire safety requirements.
• Euroclass B, C, D, E, and F: Materials in these categories exhibit varying degrees of fire performance, with B being the most fire-resistant within this group, and F indicating materials with little or no performance. The classification helps users select materials based on their specific fire safety needs.

Pressure-Treated Wood:

• Traditional decking material, such as pressure-treated wood, can be rendered fire-resistant through chemical treatments. These treatments penetrate the wood, creating a barrier against ignition. Understanding the treatment process and the longevity of fire resistance is essential for effective use.

Composite Decking:

• Comprised of a blend of wood fibres and recycled plastics, composite decking offers a fire-resistant alternative to traditional wood. The materials are inherently less combustible, making them a popular choice for those seeking a balance between aesthetics and safety.

Aluminium Decking:

• Aluminium decking is known for its durability and resistance to fire. Its non-combustible nature makes it an attractive option for areas where fire safety is a primary concern. Additionally, aluminium decks are resistant to moisture, reducing the risk of mould or decay.

Fire-Rated Non-Combustible Fibre Cement Decking:

• Fibre cement decking materials are non-combustible and offer excellent fire resistance. These materials are composed of cement, sand, and cellulose fibres, providing a durable and fire-safe option for decking applications. This hardwearing and low-maintenance profile is Euroclass A2 fire-rated. Check out our SHERA Fire Rated Decking range for a top-quality option.

Bamboo Deck Boards:

• Bamboo, a rapidly renewable resource, is gaining popularity as a decking material. A sustainable substitute for tropical hardwoods and composite products, this option excels in environmental sustainability, strength, stability, and longevity. It proudly holds a Euroclass B fire rating without requiring additional external treatment, making it a top performer in both durability and eco-friendliness. At Gripsure, we are proud to be the UK’s exclusive distributor of MOSO® Bamboo Decking – a safe and stylish solution for eco-projects.

Fire-Resistant Coatings:

• Some decking materials can be coated with fire-resistant substances to enhance their ability to withstand flames. These coatings act as an additional layer of protection, contributing to the overall fire performance of the decking.

Composite Cladding:

• Similar to composite decking, composite cladding offers fire-resistant properties. It consists of a mix of materials that contribute to its ability to withstand flames and heat, providing an aesthetically pleasing and safe option for exterior walls.

Bamboo Strips:

• Compressed and thermally modified bamboo strips offer a unique and fire-resistant option for cladding. Subjected to high temperatures (around 200°C), these bamboo strips gain enhanced fire resistance while maintaining their natural beauty, providing both sustainability and safety.

High-Pressure Laminate (HPL) Cladding:

• HPL cladding is made by layering resin-impregnated sheets onto a core material. It is known for its versatility, durability, and fire-resistant properties. HPL cladding is often used in both residential and commercial buildings for its aesthetic appeal and performance.

Metal Cladding:

• Metal cladding, particularly using materials such as aluminium or steel, is inherently non-combustible. Metal cladding systems are known for their durability, resistance to fire, and low maintenance requirements. They are often used in high-rise buildings and other structures where fire safety is a critical consideration.

Brick Cladding:

• Traditional brick cladding is inherently fire-resistant due to the nature of the material. Bricks do not burn, and their use in cladding provides a robust barrier against fire spread. Brick cladding is not only fire-resistant but also offers a classic and timeless aesthetic.

Stone Cladding:

• Similar to brick, stone cladding provides excellent fire resistance. Natural stone materials are non-combustible and can be used for both functional and decorative purposes. Stone cladding is often chosen for its durability and ability to withstand external elements.

Choosing the right fire-rated materials for your project is critical for ensuring safety and compliance with building regulations. Start by assessing the local fire safety codes and regulations applicable to your region. Consider the specific requirements of your project, such as the type of structure, its intended use, and the environmental conditions it will face.

Next, you’ll want to evaluate the fire ratings of materials based on recognised standards such as Euroclass classifications or local equivalents. Understand the material’s composition, whether it’s pressure-treated wood, composite decking, or cladding made of fibre cement or metal. Look for certifications from reputable testing agencies, ensuring that the chosen materials meet or exceed fire safety standards.

You’ll also want to consider the aesthetic and functional aspects of the materials, keeping in mind your design preferences and project goals. Seek materials that strike a balance between fire resistance, durability, and visual appeal.

Finally, engage with knowledgeable suppliers and consult with professionals in the field to make informed decisions tailored to your project’s unique requirements.

Here at Gripsure, we have almost 20 years of experience helping our customers create beautiful and safe spaces using decking and cladding materials. We’re committed to continuously improving how we operate and are always seeking to achieve the highest environmental, ethical and safety standards. If you’re looking for guidance on fire-rated decking and cladding materials for your next building project, feel free to drop our team a message – we’d love to help!