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Wallbarn Substructure - Class A System for Paving or Decking

Verified by manufacturer 24 days ago

Single beam rail/ joist - 50 mm

Wallbarn Ltd Variant:
Third party certifications:
  • ISO 14001 Environmental Management Systems

    Certificate type

  • ISO 9001 Quality Management

    Certificate type

MetalPad Ex Adjustable Pedestals with Aluminium Joists/Rails

Jump to:
BOS
+44 (0)20 8916 2222 Website

Application

Designed for class A balconies and terraces. Compliant with BS 8579, Approved Doc B and DCLG fire safety rules.

Description

Substructure system using MetalPad Ex pedestals that has been designed to adhere to fire safety rules while also creating a high-performance platform for paving and decking projects.


All components have been specifically designed to integrate into the system. The aluminium rails/ joists fit to the fire-rated MetalPad Ex adjustable pedestal via wing nut fixings. The system is highly versatile, and the substructure can be built to as low as 41 mm. Using rail-to-rail headpieces will enable a framework of multiple support beams to be built to very large height thresholds, whilst still maintaining durability and stability.


Features and benefits:

  • Class A1 rated (EN 13501-1:2018), fully compliant with BS 8579.
  • Full metal substructure, zero plastic and zero rubber “gaskets”.
  • Fast, easy, seamless connection.
  • Greater spans between pedestals possible.
  • All fixings and connectors provided.
  • Spreader plate available for larger weight distribution.
  • Click function fixing with zero mechanical fixings.
  • Balcony construction suitability of >11 m (BS 8579).
  • Paving headpiece can be fitted anywhere along the rail for perfect alignment of tiles.
  • The system is designed to enhance support for slabs and tiles while providing added lateral strength across the deck, ensuring a more stable and durable surface.
  • The system enables faster installation of suspended paving projects, offering millimetre-precise adjustments for a perfectly aligned finish.
  • Weight bearing joists mean very large spans between pedestals possible.
  • Very large height thresholds achievable, using rail to rail headpiece.
  • Pave up to walls and parapets with the metal edge plate which provides drainage gap between the wall and perimeter tiles/ slabs.
  • Helps deal with difficult to work with subfloors that are undulating or have features such as vents, plinths or drains.

General information

Color

Silver

Finish

Metallic

Material

Aluminium

Steel

Shape

Other

Length

2500 mm

3600 mm

Manufacturer guidance

The lengths referred to here are for the aluminium Box Rail and I-Plus Joists/Rails. The pedestals are the Class A rated MetalPad Ex range of adjustable pedestals covering heights from 25mm to 300mm.

Width

60 mm

Manufacturer guidance

The Width of all Wallbarn Aluminium Joists/ Rails are 60mm. These are secured to the pedestal using the Wallbarn Wing Nut Kit which allows you to hand tighten them without the need for specialist tools.

Height

Manufacturer guidance

The heights referred to here are for the aluminium Box Rail and I-Plus Joists/Rails. The adjustable pedestals are the Class A rated MetalPad Ex range of covering heights from 25mm to 300mm.

Warranty description

15 year

Uniclass

Pr_20_85_47_22 Decking and paving pedestalsPrimary
Pr_20_76_51_07 Aluminium structural sections

CAWS

J31/377 Support system for paving slabs or tiles

J31/375 Paving tiles

J21/467 Support system for precast concrete paving slabs

Q55/395 Support pedestals

Q55/110 Deck

Q37/460 Support pedestals

J21/85 Precast concrete paving slabs

J31/370 Precast concrete paving slabs

J41/90 Precast concrete paving slabs

J31/80 Precast concrete paving slabs

J42/467 Support system for precast concrete paving slabs

Product range

Substructure for Paving and Decking Systems
Fire Rated Paving and Decking Systems
Decking and Substructure

Specification data - Decking and paving pedestals

Pedestal type

Metalpad Ex pedestals.

Guidance for specification option:

100 mm in diameter.

Metalpad Ex pedestals with spreader plate.

Guidance for specification option:

175 mm in diameter.

Material

Aluminium.

Accessories

Not required.

Self-levelling headpiece.

Guidance for specification option:

  • Special Self-Levelling / slope corrector headpieces are available for MetalPad EX range which connects securely onto the headpiece and gives a slope correction up to 5° in all directions.
  • The lugged headpiece holds the tiles / slabs securely in place and finds its own natural position to create a flat upper surface.
  • If the headpiece is inverted the lugs can wrap around a number of the aluminium rails available from Wallbarn.
  • There are no non-metallic elements on this Slope Corrector so it complies with a Class A1 fire rating.

Paving headpiece.

Guidance for specification option:

  • Paving Headpieces fit directly on to the MetalPad Ex Pedestal, our Metal Fixed Height Pads and all Wallbarn aluminium Rails, without the need for mechanical fixing.
  • The lugged headpiece holds the tiles / slabs securely whilst also providing a gap for drainage between each of the tiles or paving slabs.
  • The headpiece is made of galvanised steel and coated in Zintec 200 to prevent corrosion.
  • These Headpieces meet Class A fire rating.
  • They are available with different lug positions that make positioning tiles easier for any layout such as brickwork or stretcher bond.


Crucifix headpiece.

Guidance for specification option:

  • Crucifix Headpieces fit directly on to the MetalPad Ex Pedestal without the need for mechanical fixing.
  • The lugged headpiece holds the tiles / slabs securely whilst also providing a gap for drainage between each of the tiles or paving slabs.
  • The Crucifix is made from High Grade Aluminium 6063 T6 to BS EN 755-9.
  • These Headpieces meet Class A fire rating.
  • Provides a simple and cost effective option when using the MetalPad Ex for paving.

Rail headpiece.

Guidance for specification option:

  • The Rail Headpiece fits on to the MetalPad Ex Pedestal and secured by a central screw.
  • The headpiece holds all Wallbarn aluminium rails/joists to produce a total Class A Substructure.
  • Made from High Grade Aluminium 6063 T6 to BS EN 755-9
  • It is ideal to be used when an existing steel structure is in place. These headpieces can be used to house and fit Wallbarn’s aluminium rails to form a substructure for decking or paving. This is a common circumstance on high rise balcony refurbishments.
  • The Headpiece meets Class A fire rating.

Rail to rail headpiece.

Guidance for specification option:

  • The Rail to Rail Headpiece is designed to allow our aluminium joists to be stacked perpendicularly, creating a robust substructure system.
  • The Headpiece is particularly useful for complex sub-floors with significant variations in finished floor levels.
  • Made from High Grade Aluminium 6063 T6 to BS EN 755-9
  • The headpiece works with all Wallbarn aluminium rails/joists.
  • The Headpiece meet Class A fire rating ensuring compliance with the latest fire regulations.

Spreader plate.

Guidance for specification option:

  • Made from Galvanised steel with Zintec 200 coating to prevent rust or corrosion.
  • Meets Class A fire rating.

Connectors and fixings.

Guidance for specification option:

  • High Grade Black Anodised Stainless Steel Screws work seamlessly with all our fixings, brackets & headpieces.
  • Cost effective brackets to connect aluminium rails together
  • Stainless steel brackets with M8 Bolt & Wingnut to securely hand tighten aluminium rails together.
  • Wallbarn has a number of Class A Decking Clips.

Fire classification

To BS EN 13501-1, Class A1.

Guidance for specification option:

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

Tolerances

600 kg/m².

Guidance for specification option:

Weight tolerance.

Rail height

20 mm.

Guidance for specification option:

  • Span between pedestals: 500 mm.
  • Thickness of walls/ floor: 2 mm.
  • Outer height: 20 mm.
  • Inner height: 16 mm.
  • Outer width: 60 mm.

25 mm.

Guidance for specification option:

  • Span between pedestals: 500 mm.
  • Weight per linear metre: 0.988 kg.
  • Exterior circumference: 184.96 mm.
  • Interior circumference: 175.3 mm.
  • Thickness of walls/ floor: 2 mm.
  • Outer height: 25 mm.
  • Inner height: 21 mm.
  • Outer width: 60 mm.

50 mm.

Guidance for specification option:

  • Span between pedestals: 500 mm.
  • Weight per linear metre: 1.998 kg.
  • Exterior circumference: 234.97 mm.
  • Interior circumference: 261.32 mm.
  • Thickness of walls/ floor: 3 mm.
  • Outer height: 50 mm.
  • Inner height: 46 mm.
  • Outer width: 60 mm.

Sub frame

Aluminium Box & I-beam Rails, 50 mm I-Beam.

Guidance for specification option:

Dimensions (W x H): 60 x 50 mm.

Fasteners

I-Plus Beam Straight & Right Angle Bracket – Screw Fixing.

I-Plus Beam - M8 Straight & Right Angle Bracket with Wingnut.

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Manufacturer guidance

Material for the aluminium joists/rails is from Untied Kingdom.

Material for MetalPad Ex pedestals are from China.

Country of product manufacture

United Kingdom

Manufacturer guidance

Country of manufacture for the aluminium joists/rails is the United Kingdom.

Country of manufacture for MetalPad Ex pedestals is China.

Recyclability

100

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
-

1

IFC
-

1

Third party certifications

ISO 14001 Environmental Management Systems

ISO 14001 Environmental Management Systems

ISO 14001

ISO 9001 Quality Management

ISO 9001 Quality Management

ISO 9001

Literature

Brochure - Class A Substructure

Brochure - Class A Substructure

Brochure - MetalPad EX pedestals

Brochure - MetalPad EX pedestals

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