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Step 9: Protection Board and Pre-Topping Final Inspection

Step 9 involves installing a protection board over the drainage mat as the final inspection opportunity before concrete topping is applied to the roof assembly. This checklist ensures the membrane, drainage mat, protection board, and drain systems are properly installed and inspected before permanent coverage.

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Summary

Step 9 involves installing a protection board over the drainage mat as the final inspection opportunity before concrete topping is applied to the roof assembly. This checklist ensures the membrane, drainage mat, protection board, and drain systems are properly installed and inspected before permanent coverage.

Tags

protection-board · roof-inspection · waterproofing · drainage-mat · pre-topping · checklist · construction

Key entities

protection board (concept, 0.95) · drainage mat (concept, 0.95) · flood test (concept, 0.9) · membrane (concept, 0.9) · pre-topping final inspection (concept, 0.95) · FM-specified (concept, 0.85)

Classification

checklist · language en · status final

Provenance

claude-haiku-4-5 via @stacklist/be@0.1.0, confidence 0.85, 23 Sep 2026