What is a SpeedDeck® VT Structural Roof Decking or VK Structural Tray?

SpeedDeck’s VT Structural Roof Decking and VK Structural Tray ranges offer the designer a long span solution reducing the amount of structural frame whether steel frame or timber frame or glulam beams, providing an uncluttered, clean internal finish to any roofing system in an vast array of design solutions such as waveform, curved barrel vaulted, convex, concave and ‘hockey stick’ complex shapes and simple low pitch flat roofing solutions.

Perforations can be included into the structural deck or structural tray to absorb the sound and reduce the internal sound reverberation in buildings such as schools, leisure centres, swimming pools and arenas.

Using a structural roof decking or structural tray from rafter to rafter can remove the requirement entirely for using unsightly cold rolled purlins or rails on projects where the interior of the roof or wall system is internally exposed such as leisure centres, swimming pools or automotive retail showrooms. The long span structural deck is the mechanism by which the design loads from the roof are transferred into the structural frame and provides lateral restraint to the structural frame. Stress Skin or diaphragm action design can be engineered in to the structural decking or tray design to replace most of the in plane roof bracing.

Structural decking and tray solutions can be used with a myriad of differing roof systems from metal standing seam roof systems such as SpeedZip®, SpeedDeck®, and SpeedRoof®, Living Roof Green Roofing Solutions, to flat roofing systems such as Single Ply Membrane, 3 layered Felt, and Asphalt and the more traditional slating and tiling.

The benefits of SpeedDeck® VT Structural Roof Decking and VK Structural Tray Range

SpeedDeck’s VT Structural roof decking and VK Structural tray ranges boast some 18 differing profiles for all environments applications and design criteria, from the 32mm deep low profile shallow structural decks to the 205mm deep high profile or deep long span structural decking solutions for roof constructions, to the 90mm to 160mm deep trays in either 500mm or 600mm widths for wall constructions.

Both structural decks and trays are generally laid transverse to SpeedDeck's SpeedZip®, SpeedDeck® or SpeedRoof® standing seam and secret fix roof systems to eliminate the use of purlins / rails, but can be designed to be laid in line with the outer sheet reducing the amount of cold rolled supports, but not eliminating them.

Supplied in aluminium or steel and with a choice of gauges, colours, and finishes, SpeedDeck® VT Structural decking and VK Structural Tray metal roofing and cladding systems provide the perfect structural compliment to any of our roofing profiles enabling us to supply a single source roofing and cladding system reducing deliveries and carbon emissions, whilst still offering a 25 year single source system warrantee including workmanship by regularly independent auditing the installation of the roofing & cladding system onsite.

What are the differences between SpeedDeck’s VT Structural Deck and the VK Structural Tray?

Both the VT Structural Decking & the VK Structural Trays can be used in both roof and wall constructions either spanning between the main rafters in the roof solution or between the main columns in the wall construction. However both structural decks and trays can be used in conjunction with purlins or rails to minimise the amount of cold rolled support depending on the loads imposed.

Although both products can be used in both roof and wall applications, structural decking is generally used on the roof and structural trays on the walls, depending on the outer roof or wall system.

Structural decking is trapezoidal or profiled in shape, whereas by comparison the structural tray has a lightly profield base and two raised flanges which provide its strength. The internal aesthetic of each system is different with the structural decking show the trapezoidal shape whereas the structural tray provides a flatter finish.

Why specify SpeedDeck’s® VT Structural Decking and VK Structural Tray Roofing & Cladding Systems from SpeedDeck Building Systems Limited?

• Single Source, transferrable Protector System Warranty up to 25 Years INCLUDING workmanship through independent on-site auditing of the installation for the whole roofing & cladding system
• 18 profiles of structural deck and structural trays in a large range of gauges and finishes
• Vast range of outer sheet solutions for both roof and wall solutions
• U Value as low as 0.05 W/m2K
• Composite and built up wall cladding systems including bespoke rainscreen systems to compliment the SpeedDeck roof system.
• Single Source Supply for all aspects of the roofing & cladding system from liners and structural decks through soffits, and fascias and rainwater goods, completed with perimeter flashings and bespoke fabrications reducing carbon emissions through efficient and minimal deliveries to site
• Systems available for both the New Build, Modular or Volumetric and refurbishment sectors, SpeedDeck® VT Structural Decking and VK Structural Trays are the ‘Natural Choice’ for long span roofing & cladding systems.

SpeedDeck's VT Structural Deck Range - Steel - use with Standing Seam and Secret Fix systems such as SpeedZip, SpeedDeck and SpeedRoof, and flat roofing systems such as single ply membranes, 3 layered felt, asphalt and hot melt systems.

				Thickness Available (mm)
VT Deck Profile	Profile	Finish	Perf Option	0.7	0.75	0.88	1.00	1.13	1.25	1.5
	VT 32 / 950	Galvanised
		Internal    Quality   Polyester
		External Quality Polyester
	VT 35 / 1035	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 40 / 915	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 50 / 1000	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 83 / 1120	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 89 / 915	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 100 / 825	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 137 /930	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 153 / 840	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 158 / 750	Galvanised
		Internal Quality Polyester
		External Quality Polyester
	VT 205 / 750	Galvanised
		Internal Quality Polyester
		External Quality Polyester

Please contact our technical team for load span tables and technical advice

email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it.

ph: 01379788166