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Different types of balcony decking materials
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Decking Materials

Class A Decking

Since the Hackitt review and the following combustible cladding ban the industry has been struggling to understand and adapt to the changes in regulation.

Balconies are of course included in the ban on combustible materials on the exterior of buildings over 18 metres including components like soffits and decking.

All decking must now be class A and be fully non-combustible. Our supplier MyDek provides aluminium decking in a range of finishes which are all fully compliant with government regulations.

https://www.mydek.com/

COACH Software for PC, Laptop, Tablet and Mobile responsive designs.

Design A Compliant Balcony with Decking

Use our free online software COACH to design & download your balcony details including decking specification and structural calculations...

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Composite

Sapphire has had experience with and installed on Cassette® balconies many of the WPC and wood-free composite decking boards on the market.

As part of the extensive third-party Cassette® testing, we tested multiple decking materitals in pendulum tests (determines slip resistance), before and after accelerated weathering, the structural performance of decking, etc.

One of the selection considerations is the PTV (Pendulum Test Value) achieved, these are categorised as:

  • 0-24: high slip potential
  • 25-35: moderate slip potential
  • 36+: low slip potential

Sapphire had tests carried out by a UKAS accredited test house in a lab with a temperature of 21°C. The Pendulum values from these tests are shown below.

Whilst there are many options of composite boards, Sapphire prefer to supply their own extruded composite board which has been extensively tested and offers a wide range of standard colour and grains, uses a hidden clip system and is cost effective.

In our experience, darker colours are most common, used in conjunction with a B1 – brushed finished. It is generally considered in the marketplace that grooved boards offer better rainwater dispersal. With less rainwater sitting on the decking, slip resistance should, therefore, be improved.

A key consideration post-Grenfell is decking compliance with the combustible cladding ban. All materials used on the exterior of buildings over 18 metres must be non-combustible. Download the full whitepaper on the ban to learn more.

We are proud to be UK’s only distributor for Enjura WPC decking. www.enjura.co

Doorsill Interface

The interface between the decking and the door sill are often the subject of discussion between trades. We have categorised solutions...

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Balcony Structure

There are three parts to the main balcony structure. Firstly, the Cassette® balconies ‘skeleton’, this in essence, is a chassis...

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Soffits

Different balcony structures have different drainage requirements. Concrete balconies, for example, tend to be treated like a flat roof and...

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