Structural Deck VT205 / 750

  • VT205 / 750

    Structural Deck

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VT205 / 750

Structural Deck


StructuralDeck VT_205-750

To be used with the following products:

  • ‘Zip-Up’ or Secret Fix Standing Seam Profiles such as; SpeedZip®, SpeedDeck®
  • Flat roofing materials such as Single Ply Membrane, Asphalt, 3 Layered Felt or Hot melt systems.

Typical Spans:

  • Single Span: typically up to 9.1 metres
  • Double Span: typically up to 9.5 metres
  • Multi-Spanned: typically up to 9.8 metres
  • Maximum Standard Sheet Lengths up to 13.6 metres (Longer lengths priced on application.)

Materials, Gauges & Finishes:

  • Steel Material
    • 0.75 / 0.88 / 1.00 / 1.13 / 1.25 / 1.5 mm thickness
  • Finishes Available
    • Galvanised Steel
      Hot dip zinc coated steel EN 10147 S280GD +Z275
      Minimum zinc coating mass 275gr/m2 both sides
    • Painted Steel
      Hot dip zinc coated steel EN 10147 S220GD +Z275.
      Bright White RAL 9010 (nominal) colour polyester coating – 15 micron coating for internal use
      Bright White RAL 9010 (nominal) colour polyester coating – 25 micron coating for external use

Fixing Specification:

  • Intermediate 1 Nr SDIBSW into every trough
  • End Laps 2 Nr SDIBSW into every trough
  • Side Laps SDIBSW or pop-rivet at 450mm centres.


ISO 9001, ISO 14001 (materials)

Fire Rating:

All non-perforated roof decking achieves a Class 1 fire rating in accordance with BS 476: Part 7 and meet Class 0 requirements as laid out within current building regulations.


  • This structural deck is produced in a solid and perforated format.
  • Our standard perforation pattern 5 x 8 provides a 35% open area. Please note this refers to the web element of the deck profile for maximum sound absorption coefficient without compromising structural integrity.
  • Other perforation patterns available based on minimum order value.

For further information on the open area of individual profiles as a whole please contact us.

Structural Design:

  • General Use
    The design and application of profiled roofing and cladding is covered by BS 5427 : Part 1 : 1996 Code of practice for the use of profiled sheet for roof and wall cladding on buildings. Part 1. Design.
  • Fragility
    Non-fragility requirements are determined by ACR(M)001:2000 Test for Fragility of Roofing Assemblies. (Second edition)
  • Loading
    Calculate loads in accordance with: BS 6399 Part 2 : 1997 Code of Practice for wind loads. BS 6399 Part 3 :1988 Code of Practice for imposed roof loads (including snow and snow drifting).
  • Structural Design
    BS EN 1991 Eurocode 1: Basis of design and actions on structures

    Part 1 Basis of design
    Part 2 – 1 Densities, self-weight and imposed loads
    Part 2 – 2 Actions on structures exposed to fire
    Part 2 – 3 Snow loads
    Part 2 – 4 Wind actions – BS EN 1993 Eurocode 3 : Design of steel structures
    Part 1 – 3 Cold formed thin gauge members and sheeting

Get in touch

Contact us to discuss your next project, learn more about our roofing and cladding solutions or to see how we can become partners.

Structural Deck VT205 / 750 List