Technical Booklet D Structure·Page 28·Diagram 4B.2
Roof snow load zones map
Diagram 4B.2 shows the geographic distribution of snow load zones (A and B) across Northern Ireland, with guidance that sites straddling zone boundaries should adopt the worst loading case.
Diagram 4B.2 Simplified roof snow load map showing Zone A and Zone B distribution across Northern Ireland. Where the site straddles the boundary between Zone A and Zone B the worst loading case should be adopted for the complete building.
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