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Check 9: Protection Board Coverage Before Topping
Check 9 is a critical hold-point inspection verifying that protection board completely covers the drainage mat with no gaps, damage, or exposed materials before concrete or tile topping is applied. The checklist ensures proper board condition, clearance at drains/scuppers/walls/penetrations, and requires PM approval before any topping work begins.
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Summary
Check 9 is a critical hold-point inspection verifying that protection board completely covers the drainage mat with no gaps, damage, or exposed materials before concrete or tile topping is applied. The checklist ensures proper board condition, clearance at drains/scuppers/walls/penetrations, and requires PM approval before any topping work begins.
Tags
protection-board · quality-assurance · construction-checklist · roofing-inspection · drainage-mat · hold-point · pre-topping
Key entities
protection board coverage (concept, 0.95) · drainage mat (concept, 0.92) · hold point inspection (concept, 0.9) · drain clamping ring (concept, 0.88) · scupper throat clearance (concept, 0.87) · membrane termination (concept, 0.85) · PM sign-off (concept, 0.83)
Classification
checklist · language en · status final
Provenance
claude-haiku-4-5 via @stacklist/be@0.1.0, confidence 0.85, 23 Sep 2026