Structural Roof Deck

The right roof deck product will typically depend on the structural support type, support spacing and loadings applied. With a comprehensive product range from 30-200mm high, SMD has the product to suit your roof specification.

The SMD structural roof deck product range provides options for all support types from light gauge steel purlin to hot-rolled sections.  The long spanning nature of the products provides the structural deck (tray) for all types of insulated roof systems including; Single Ply Membrane, Double skin built-up system, Standing Seam, Green Roofs and Asphalt.


Available in gauges varying from 0.7mm to 1.2mm

Manufactured from steel strip to BS EN 10143:2006 and BS EN 10346:2015

350N/mm2 minimum yield strength options available

Polyester coating also available – minimum coating mass of 150g/m² with 25 micron bright white polyester to the interior surface

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TATA Roof Deck

We offer a comprehensive range of structural roof decking products, manufactured in the UK, ranging from 32mm to 210mm deep and a range of structural liner trays.

Our range of RoofDek products is the only UK manufactured steel roof decking profiles with FM Approvals testing and certification. The range is fully supported by our RoofDek Analysis software enabling structural engineers and specifiers to conduct full deck analysis to Eurocode 3 and 9.


Our technical department offers free diaphragm design for all RoofDek types.

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