A pitch “compliance check” here is a takeoff gate, not an E2/AS1 certificate. Answer these before coil is cut. How to compare the number to the table: minimum cladding pitch check. Tool: pitch calculator.
- What is the as-laid cladding pitch on this plane? Degrees after deflection, not the truss ticket. Wide purlins can take an 8° drawing below the corrugate table.
- What is the named profile? Cover + min pitch + check-run from that sheet. “Corrugate” is not a spec (Dimond vs Metalcraft).
- Does the manufacturer add a rule? Metalcraft corrugate 9° past 30 m (≤100 mm/hr). Stratco expansion joints on long dark sheets.
- Is any plane under the table? 6° 16.5 mm corrugate → change profile or framing (min pitch corrugate).
- Wind zone? Extra High is Category B flashing cover at every pitch (Extra High order).
- Run length vs check-run? (drainage run).
Screenshot the takeoff warnings with those answers written next to it. NZMRM CoP and the current PTS remain the authority.