| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. 1. SCOPE OF WORK | |||
| A1 | Scope statement: What specific roofing activities are covered (e.g., sheet laying, insulation, waterproofing, fastening) Acceptance: Clear description of all activities; Boundaries defined; Exclusions noted if any | Clause 1.1 — Work scope definition | OK NC NA HOLD |
| A2 | Materials & specifications: Sheet type, gauge, insulation type, fasteners, sealants specified with part numbers Acceptance: All materials listed with IS code reference; Part numbers/batch specs noted; Approved source documented | Clause 1.2 — Material specification | OK NC NA HOLD |
| B. 2. MATERIALS & STORAGE | |||
| B1 | Material storage location: Site location, elevation, weather protection specified Acceptance: Storage area identified on site plan; Elevation above ground specified; Protection method stated | Clause 2.1 — Storage site identification | OK NC NA HOLD |
| B2 | Storage conditions: Temperature range (5-35°C), humidity (<80% RH), UV protection, ventilation requirements stated Acceptance: Storage method described; Temp/humidity limits stated; Monitoring plan included | Clause 2.2 — Environmental controls | OK NC NA HOLD |
| B3 | Material testing plan: Outline of tests to be conducted (thermal conductivity, water absorption, pull-out tests) Acceptance: Tests listed with reference to IS codes; Sampling plan included; Lab identified | Clause 2.3 — QC testing plan | OK NC NA HOLD |
| C. 3. SUBSTRATE PREPARATION | |||
| C1 | Roof structure inspection: Visual inspection and confirmation of structural readiness (purlins, level, alignment) Acceptance: Inspection method described; Acceptance criteria stated (±5mm/m levelness); Sign-off requirement noted | Clause 3.1 — Structural verification | OK NC NA HOLD |
| C2 | Substrate cleaning: Method for removing dust, debris, loose paint, corrosion from purlin surface Acceptance: Cleaning method (wire brush, vacuum, etc.) described; Acceptable surface condition specified | Clause 3.2 — Surface preparation | OK NC NA HOLD |
| C3 | Underlayment installation: Membrane type, overlap (150mm), fastening pattern (300mm c/c) specified Acceptance: Membrane type named; Overlap dimension stated; Fastening method and spacing defined | Clause 3.3 — Moisture barrier | OK NC NA HOLD |