FAQs – SpeedZip, Metal Roofing & Cladding System

FAQs – SpeedZip, Metal Roofing & Cladding System

The SpeedZip® standing seam roofing system is a ‘Zip Up’ roofing solution involving mechanically seaming a profiled side lap over a halter support system. 

Take a look at the frequently asked questions we receive regarding SpeedZip®.

Q. What is the minimum roof pitch for a SpeedZip® roof sheet?

Answer: 1.5° installed, design to 2° – 2.5° to allow for site tolerances.

Q. Does SpeedZip® require mechanical seaming?

Answer: Yes, a mechanical seamer and installation tools are available for hire, please contact us for details and hire charges.

Q. How are the SpeedZip® sheets fixed down?

Answer: The SpeedZip® sheets are fixed to the structure via an extruded aluminium Halter.  The SpeedZip® Halter can be fixed to either a light gauge bar & bracket system / purlin or to a timber structure with two fixings suitable for the substrate.

Q. What insulation depth do I need to achieve a 0.18W/m²K U-value?

Answer: For a standard 0.7mm Liner and a SpeedZip® top sheet you would require 250mm* of λ0.040 Quilt – allow an additional 10% for compression. *purlin centres greater than 1.100m. For additional information, build-ups or U-values please contact us.

Q. Can the SpeedZip® sheets be curved?

Answer: Yes – it is possible to factory smooth curve or crimp curve the SpeedZip® sheets. Due to different curving criteria and materials available please contact us with your required radii.

Q. What is the maximum SpeedZip® sheet length available?

Answer: For a standard road delivery – 13.6m sheet lengths, longer sheets are available upon request subject to site access. An on-site rolling option is also available.

Q. Can I walk on the roof sheets?

Answer: For occasional light foot traffic you must only walk on the seams of the SpeedZip® roof sheets. Do not walk in the pans of the sheets.

Need more technical advice?

Please contact us to discuss your project requirements.