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The calculations have been carried out in accordance with the recommendations of MCRMA Technical Paper 14 Guidance for the design of metal roofing and cladding to comply with approved document L2:2001

You can view the U-Value by selecting the entering the data required and then click the Calculate button
Outer Sheet
Pitch (mm)
Top Flat (mm)
Bottom Flat (mm)
Depth (mm)

Ashgrid Spacer
Bracket Depth (mm)
Bracket Centres (m)

Application
Roof   Wall

Liner Sheet
Pitch (mm)
Top Flat (mm)
Bottom Flat (mm)
Depth (mm)

Purlin Centres





Insulation Thermal Conductivity

To view more details of the assumption made in the preparation of the tables click here
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