Spring Clean your deck!

Cleaning and Maintenance of Non-Combustible Decking: A Comprehensive Guide

Decking is a critical feature in residential and commercial properties, offering aesthetic appeal and functional outdoor spaces. With the importance of fire safety and durability, non-combustible decking materials such as aluminium decking and non-combustible composite decking have emerged as popular choices. These aluminium decking and non-combustible composite (Luxura mineral fibre composite decking) materials are highly resistant to fire and harsh weather conditions, making them suitable for various environments. Like all outdoor features, regular cleaning and maintenance are essential to maximise their longevity and preserve their appearance. Here we explore the cleaning and maintenance requirements of aluminium decking and non-combustible composite decking, emphasising best practices and the benefits of proper care.

Characteristics of Non-Combustible Decking

Non-combustible decking materials are designed to withstand fire hazards, making aluminium and Luxura mineral composite ideal for areas prone to wildfires, tall building fires, buildings in close proximity or where strict building codes demand fire-resistant decking construction. These materials are tested to meet or exceed stringent fire safety standards, ensuring that they do not contribute to fire spread.
1.           Aluminium Decking:
Aluminium decking is a light, durable, and resistant to corrosion. It is non-combustible, weatherproof, and resistant to rot, mould, and insect damage. Aluminium decking is available in various finishes and coatings, including powder-coated options that enhance its aesthetic appeal and protect it from scratches and fading.
2.           Non-Combustible Composite Decking:
Luxura Non-combustible composite decking combines materials like mineral-based composites and fibre cement. Unlike traditional wood or plastic-based composite decking, these materials are engineered to resist fire while maintaining a superior wood-like appearance. They are also resistant to UV rays, moisture, and temperature fluctuations, making them ideal for diverse climates.

Importance of Cleaning and Maintenance

Regular cleaning and maintenance are essential for several reasons:

Aesthetic Appeal: Over time, dirt, debris, and stains can accumulate, diminishing the non-combustible deck’s visual appeal.

Longevity: Proper care prevents wear and tear caused by environmental factors like rain, UV exposure, and snow.  The image below shows timber decking which has deteriorated due to rot.

Safety: A clean deck minimises the risk of slipping due to moss, algae, or water accumulation.  The image below shows aluminium decking which has had algae build-up.

Performance: Maintaining the deck ensures its structural integrity and fire-resistant properties remain uncompromised. The image below shows a PVC composite deck (these are combustible) which needs cleaning.

Cleaning and Maintenance of Aluminium Decking

Regular Cleaning

Aluminium decking requires minimal maintenance compared to traditional wood or composite decks. However, routine cleaning ensures it stays in pristine condition.
1.           Weekly or Biweekly Cleaning:
•             Sweep the surface to remove dust, dirt, and debris. Use a soft-bristle broom to prevent scratching the finish.
•             For spills or stains, use a mild soap and water solution. Scrub gently with a non-abrasive sponge or cloth.
2.           Seasonal Deep Cleaning:
•             Wash the deck with a garden hose or pressure washer set to a low-pressure setting.
•             Apply a specialised aluminium cleaner for tough stains or grime, following the manufacturer’s instructions.
•             Avoid using harsh chemicals or abrasive tools that could damage the protective coating.

Preventing and Addressing Stains

While aluminium decking is stain-resistant, certain substances like oil or grease can leave marks if not promptly cleaned.
•             Clean off spills immediately with a clean cloth.
•             Use a degreasing agent for oil-based stains, ensuring it is compatible with aluminium surfaces.

Protecting the Coating
•             Avoid dragging heavy or sharp objects across the deck to prevent scratches.
•             Reapply protective coatings or sealants as recommended by the manufacturer to maintain the deck’s appearance and resistance to wear.

Winter Care
•             To remove snow, use a plastic shovel to avoid damaging the deck.
•             Use non-corrosive de-icing agents to prevent ice buildup. Avoid rock salt or chemicals that could corrode the aluminium surface.

Cleaning and Maintenance of Non-Combustible Composite Decking

Routine Cleaning

Non-combustible composite decking is designed to mirror the look of wood while offering superior durability. Regular cleaning is necessary to prevent dirt buildup and maintain its appearance.
1.           Sweeping and Rinsing:
•             Sweep the deck regularly with a soft brush to remove loose debris, leaves, and dirt.
•             Rinse with a garden hose to remove surface dust and light stains.
2.           Using Cleaning Solutions:
•             For a deeper clean, follow the cleaning and maintenance guidance at Technical Specifications & Resources | MyDek

• Clean the deck with a soft brush, focusing on areas with stains or grime.
  •             Rinse thoroughly to ensure no residue is left behind.Addressing Mold and MildewWhile non-combustible composite decking is resistant to mould and mildew, shaded or damp areas may still experience some growth.
  •             Use a special cleaner as described at Technical Specifications & Resources | MyDek specifically formulated for composite decking.
  •             Scrub the affected area gently and rinse thoroughly.

  Stain Removal

  Stubborn stains, such as grease, wine, or food spills, should be addressed promptly.
  •             Use a cleaner such as described at Technical Specifications & Resources | MyDek
  •             Avoid abrasive tools or harsh chemicals that could damage the surface.

  Preventing Fading and Damage
  •             Although non-combustible decking is UV-resistant, prolonged exposure to intense sunlight may cause slight colour change over time.
  •             Avoid dragging furniture or sharp objects across the deck to prevent scratches.

  Winter Maintenance
  •             Remove snow using a plastic shovel to prevent scratches or gouges.
  •             Use a non-corrosive de-icing product safe for composite materials.

  General Maintenance Tips

  Regardless of the material, the following general tips apply to both aluminium decking and Luxura non-combustible composite decking:
  1.           Inspect Regularly: Conduct routine inspections to check for signs of wear, damage, or loose fixings.
  2.           Protect Surrounding Areas: Trim nearby trees or plants to prevent leaves, twigs, or debris from accumulating on the deck.
  3.           Avoid Standing Water: Ensure proper drainage to prevent water pooling, which can lead to slippery surfaces or promote mould growth.
  4.           Follow Manufacturer Guidelines: Always adhere to the cleaning and maintenance instructions provided by the decking manufacturer.

  Benefits of Proper Cleaning and Maintenance
  1.           Extended Lifespan: Regular care ensures that the decking materials retain their structural integrity and appearance for decades.
  2.           Cost Savings: Preventive maintenance reduces the likelihood of costly repairs or replacements.
  3.           Enhanced Safety: A clean deck is less prone to hazards such as slipping or fire risks.
  4.           Improved Aesthetics: Proper cleaning preserves the deck’s original colour and finish, enhancing the overall property value.

  Conclusion

  Aluminium decking and non-combustible composite decking are excellent choices for fire-resistant, durable outdoor spaces. While these materials require less maintenance than traditional wood, regular cleaning and care are still essential to maintain their functionality and aesthetic appeal. By following the recommended cleaning practices, addressing stains promptly, and protecting the deck from environmental damage, property owners can enjoy the benefits of their non-combustible decking for years to come. Investing time in maintenance not only ensures the longevity of the decking but also enhances the safety, beauty, and value of any outdoor space.

Blazeboard are proud to announce our exclusive partnership with MyDek.  MyDek are the dominant force in supply of non-combustible decking systems, with their class leading aluminium decking products and superb support systems.  We are proud to add Blazeboard products to the MyDek range which will now be sold under the new Luxura brand. 

As experts in our unique mineral composite decking material, it’s a perfect match to add the delivery power of MyDek to our capabilities.  MyDek customer support and delivery capabilities are second to none, and we are sure that this will benefit our clients and allow our specialist team to focus on research and development for future innovations.

This partnership has been borne from the realisation and synergy of our shared values and allows all parties to play to their respective strengths as part of a cohesive team.

FAQs:

Q: I have an existing relationship with Blazeboard which I don’t want to lose?

A: Don’t worry, we aren’t going anywhere.  We will continue to support our clients in the same ways. All sales enquiries and orders will be processed through MyDek and handled by their hugely capable team.

Q: I have a new enquiry for a project?

A: Make your enquiry on the website by clicking on the Enquiry button, or by contacting us directly in the normal way, and the collective team will support you with technical support and quotations as necessary. 

Q: I have an order, who will deliver it?

A: For existing orders already being processed, we will continue to supply you directly. All future orders will be delivered by the MyDek team.

Q: I have an existing specification for Blazeboard and I’m ready to order it. 

A: Place your order in the normal way, your quote may include Luxura branding but the product references and product specification will stay the same, so your delivery will match the specification. MyDek will raise all relevant paperwork and invoicing and payment will be dealt with by them.

BS 8579 2020 was published on 28^th August 2020 and offers guidance on the design of balconies and terraces.  This British Standard considers the following design considerations for balconies and terraces:

• Structural
• Fire
• Finishes
• Wind
• Accessibility
• Safety
• Thermal
• Drainage
• Acoustics

The standard makes the distinction between a balcony and a terrace in that a balcony is an external amenity space above ground that is not above a habitable room but is accessed from the building.  A terrace however is a roof.

• Structural

Structural standards are set out in existing standards and Eurocodes.  But this new standard makes clear that some existing guidance can be applied to balconies by recognising that low natural frequencies can cause discomfort to the users, and proposes a minimum of 5Hz should be designed for.  In addition, the standard clarifies that for reasons of comfort the finished surfaces should not deflect more than 5mm under a 2KN concentrated load. 

• Fire

The standard clarifies that dividers between enclosed balconies shall be fire rated to at least the level of the corresponding internal compartment rating.   This requirement was commonly applied via interpretation of the guidance in BS9991, but now it is explicitly clear.

It is made clear that the floor of enclosed balconies shall have the same fire compartmentation performance as the compartment floors inside the building and where the balcony adjoins the building shall be stopped via cavity barrier or fire stopping. 

Additional fire resistance is needed for balconies or terraces that form escape routes. 

All parts of balconies on buildings which are occupied above 11 metres shall be of limited combustibility, i.e A1 or A2-S1-d0 as classified by BS EN 13501-1 in accordance with Regulation 7.  Importantly, the standard introduces, that this shall also apply to stacked balconies on buildings of any height. 

An imperforate drainage tray beneath the finishes serves a further function to prevent flaming droplets falling to the balconies below. 

The standard introduces the criteria that structural components shall provide fire insulation performance to the value of the cavity barriers or fire stopping in the adjoining structure.

The standard states that where this slab edge is thick enough, continuity of the fire stopping shall be maintained, but recognises that the slab edge is not usually thick enough to allow this; in which case the bracket shall incorporate fire stopping performance equivalent to the level achieved by the fire stopping or cavity barrier.  The standard highlights that any such design shall only be suitable where test evidence exists to prove the performance of the bracket in continuation of the fire performance across the whole of the area where the balcony adjoins the building. 

Particular consideration is needed around drainage penetrations in order to maintain fire compartmentation. 

• Finishes

Finishes even to an enclosed balcony, shall be exterior-grade materials.  The standard highlights the need for the longevity of components to be considered.  The standard states that a safe method of replacing parts of the balcony shall be included in the design. 

• Wind

Balconies and terraces can be subject to high winds, especially due to proximity effects from the building, like those known as “funnelling”.  During the design of balconies and terraces, consideration should be given to extreme wind events, and these should be mitigated to ensure that items do not become dislodged, and consideration should be given to the balcony doors.  The standard states that where possible, balcony doors should be designed to open inwards or side where this is practicable, or in events where outward opening is the only option, restrictors should be fitted so prevent the door from being blown by the wind.  Mitigation measures against wind can include:

• Specially designs balustrades
• Subdivision of the balconies
• Raised side balustrades

• Accessibility

The guidance on level thresholds from BS8300 and Approved Document M is brought to light in the context of balconies with the 15mm threshold rule.  The standard highlights that balconies and terraces to areas other than dwellings must accommodate the wheelchair tuning circle provision from Approved Document M.  Gaps between the surface finish such as decking boards are limited to 6-8mm.

• Safety

The standard highlights the consideration that has often been the complaint of residents of high-rise balconies, that the design should make them feel safe.   As well as being intrinsically designed to address the required structural criteria, slip resistance is an important consideration.  Slip resistance is determined by BS 7976.  Depending on the environment, the most appropriate slider should be chosen to represent shod or unshod feet.  In the relevant case, a PTV value in excess of 36 should be achieved in both wet and dry conditions in order to minimise slip potential to an acceptable level.  The standard highlights that users should be advised of the need to maintain the finishes. 

The design of the balustrades should minimise the opportunity for objects to fall from balconies. 

The standard states that an imperforate layer should be included within the balcony, in order to prevent liquids or solids falling through the gaps in the balcony and presenting a risk to people below, or that the designer should consider the risks in the designs where this is not included. 

Where possible, replacement of components should be designed to be carried out from the balcony itself.  A methodology for replacement should be detailed within the design.  The standard identifies examples of components which may need to be replaced at the end of their service life, the example given is cavity barriers.

• Thermal

Balconies and terraces act as a source of heat loss and a condensation risk, as their components are often metallic and transmit heat well, which can have an undesired cooling effect to the structure. The standard highlights the importance of correct thermal separation, to avoid condensation, and to meet the thermal criteria of the building. 

• Drainage

However, designs which collect the water in the aforementioned imperforate tray and channel this to the surface furthers from the building where it can run off the building are proposed, provided the balcony is not deeper than 2.5m

Also, positively drained solutions are proposed, however these are subject to the constraints of firestopping around the drainage pipes as highlighted above. 

As highlighted above, gaps should be limited to 6-8mm between boards, and a 10 – 12mm gap should be allowed around the outside of the finishes in order to enable water to readily drain away.

The standard makes it particularly clear that no opportunity for even small amounts of water to be trapped on the finishes. 

In line with NHBC requirements the drainage layer is noted to be at least 75mm below the threshold, and 150mm below the top of the membrane to adjacent walls. 

Guidance is given on how to calculate the amount of expected rainfall on a balcony and how to design outlet pipework.

• Acoustics

Balconies can offer some screening against unwanted external sound.  Material selection plays an important part in the acoustic performance of the balcony.  Solid materials should be used where possible for this purpose.  Acoustic absorption of materials is classified by BS EN ISO 11654, with Class A being the best performing.