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Now allows you to generate your own 7 Page comprehensive structural and wind reading report using the latest 2015 BRE 489 Wind data and an itemised picking list.

System Calculator

Select your mounting system calculator

ExpressFixx the perfect system
for all tiles and slate roofs

  • For all Plain tiles, profiled tiles & slates
  • Designed specifically to fit UK roofs
  • Enables horizontal, vertical & cross configuration
  • Convenient 3.2m ExpressRail ™ lengths for easy logistics
  • Optional adjustable end clamp accommodates any module size
  • Lean inventory for easy ordering and cost saving
  • Easy to use System Calculator


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Developed by Moodey IT
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The REDtip calculator is suitable for the REDtip above-roof pitched installation system.

REDtip Calculator Version 2.106

The variables in this calculator are derived from BRE Digest 489 and the results of MCS012 testing.
Further references: BRE Digest 489; BRE Digest 495; Eurocode-1 (BS EN1991).

Whilst every care is taken to ensure the accuracy of these calculations REDtip cannot be held responsible for any errors. Please check results carefully and if in doubt, consult a structural engineer.

Subject REDtip Mounting System Wind Load Calculator
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