NBS Source

Class A Substructure for Non-Combustible Decking Systems

Verified by manufacturer 2 months ago

Wallbarn Ltd

Class A2-s1, d0 MetalPad adjustable pedestal with integrated aluminium rail joist for non-combustible decking system on balconies, terraces and podium decks.

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Application

For use with MetalPad for decking. Designed for Class A balconies, terraces and flat roofs, and complies fully with BS 8579.

Description

MetalPad adjustable pedestal for decking with aluminium rail joist system to create substructure frame for Class A decking.

Profiled rail joist clicks between four lugs on headpiece of MetalPad to give secure fitting without need for mechanical fixings. Class A deck boards (by others) are fixed to the rail/ joist.


Features and benefits:

  • Classified A2-s1,d0 in accordance with BS EN 13501-1:2018.
  • Complies to BS EN ISO 1716:2018.
  • Physically tested in accordance with procedure specified in BS EN 13823:2020.
  • Includes profiled aluminium box detailed rail, 20 mm, 25 mm or 50 mm high - 60 mm wide.
  • Rail lengths are 2 or 2.5 m as standard; up to 5 m lengths available.
  • Fully integrated, mechanical fixing free substructure.
  • Part of a Class A2-s1,d0 system using a powder-coated pedestal non-combustible system.
  • Greatly enhances lateral stability.
  • Allows pedestals to be placed at larger centres whilst maintaining weight tolerance.
  • Low height threshold for decking; 45 mm from the floor to the underside of the deck board.
  • Substructure height up to 350 mm maximum.
  • Very high weight tolerance: 1000 kg, with a break point of over 2000 kg.
  • Class A based on EC Commission 96-603.
  • Class A based on BS EN 13501-1: 2018 Fire Classification of Construction.
  • BS 8579: 2020 Guide to the Design of Balconies and Terraces.
  • Approved Document B fire safety volume 1-2019.


Also available for paving systems (specified separately).

General information

Finish

Powder-coated

Headpieces.

Galvanized

Pedestals.

Material

Class A, BS8579

Steel

Pedestals (galvanized).

Aluminium

Rails.

Stainless steel

Headpieces (powder-coated).

Length

2500 mm

Width

60 mm

Height

Bespoke

20mm, 25mm, 50mm, 70mm, 100mm, 120mm

WarrantyDescription

15 year

Limited warranty

Uniclass

Ss_30_20_30_25 Decking systemsPrimary

CAWS

Q37/460 Support pedestals

Q55/110 Deck

Q55/395 Support pedestals

Product range

Pedestals

Specification data - Decking systems

System performance

Insert requirements.

-

Ground preparation

Insert requirements, specify separately or omit.

-

Barrier membrane

Insert requirements or omit.

-

Structure

-

Foundations

Insert requirements or omit.

-

Primary structure

See also 'Adjustment' below for related options.

  • Tolerances: Heat/ softening point: 465°C. Cold/ brittle point: -50°C.
  • Fire classification (EN 13501-1): Classified A2-s1,d0 in accordance with BS EN 13501-1:2018. Physically tested in accordance with procedure specified in BS EN 13823:2020.
  • Pedestal head diameter: 120 mm; base plate diameter: 150 mm.
  • Powder coated to prevent reaction between aluminium and steel.
  • Grade: 1000 kg per pedestal; break point over 2000 kg.

MetalPad adjustable pedestals.

Subframe

Aluminium rail joist system - See Rails below.

Fasteners

Manufacturer's standard.

Rails click into pedestal heads. Noggins connected to main rails where applicable.

Deck boards

-

Material

Insert requirements or specify separately.

-

Board accessories

Insert requirements or omit.

-

Guarding

Required.

Insert requirements.

Not required.

Edge protection

Required.

Insert requirements.

Not required.

Rails

Rail support system.

  • All rails are aluminium 6063T6 to BS EN 755-9.
  • Fire rating: Class A1 to BS EN 13501-1: 2018.
  • Rails have four shelves/ lips at each corner to allow for a secure fitting into compatible pedestal pads.
  • Surface decking can be mechanically fixed to the rail into the ribbed groove which can hold a screw fixing effectively.
  • 100% recyclable.
  • High weight tolerance; consult manufacturer for details.
  • 15-year warranty.


Longer rail lengths available as non-standard; consult manufacturer for details.

Aluminium ledged profile rails, 20 x 60 x 2000 mm.

2 mm-thick aluminium with single box detail. Makes ultra-low decking systems possible.

Maximum span (centres): 600 mm. Matching noggins can be included between (perpendicular to) rails especially in ultra-low systems.

Aluminium ledged profile rails, 25 x 60 x 2500 mm.

2 mm-thick aluminium with double box detail.

Maximum span (centres): 600 mm. Matching noggins can be included between (perpendicular to) rails.

Aluminium ledged profile rails, 50 x 60 x 2500 mm.

3 mm-thick aluminium with double box detail.

Maximum recommended span (centres): 900 mm. Matching noggins can be included between (perpendicular to) rails.

Consult manufacturer if larger spans are required.

Adjustment

Pedestals only.

Select multiple adjustment ranges as required for use on variable height/ uneven surfaces.

25–32 mm.

32–39 mm.

39–46 mm.

46–53 mm.

53–70 mm.

Self-levelling headpiece up to 5% movement in all directions.

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Fire classification (EN 13501-1)

Classified A2-s1,d0 in accordance with BS EN 13501-1:2018.

Physically tested in accordance with procedure specified in BS EN 13823:2020.

Environmental information

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Recyclability

100

Recycled content

0 %

Literature

Class A Top Head for Rail System datasheet

Class A Top Head for Rail System datasheet

Class A MetalPad for Decking datasheet 53-300mm

Class A MetalPad for Decking datasheet 53-300mm

MetalPad for Decking datasheet 25-53mm

MetalPad for Decking datasheet 25-53mm

Class A substructure system

Class A substructure system

MetalPad TWIN Class A pedestal

MetalPad TWIN Class A pedestal

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