Inspection and Test Plan for Method Statement – Heavy-Duty Polyethylene (HDPE) Vapor Barrier Installation Below Concrete Slab-on-Grade
AI-assisted inspection and test plan connected to a method statement, with PDF and Excel export.
More than a static template
Unlike a downloadable Word or PDF template, this ITP is an AI-assisted editable starting point directly connected to its method statement. Every inspection activity, hold point, and acceptance criterion is structured and ready to adapt to your project.
- AI-assisted customization — Tailor inspection activities and acceptance criteria to your specific project scope.
- Linked method statement — This ITP is connected to the corresponding method statement describing the work sequence.
- Multiple export formats — Download as a formatted PDF or editable Excel spreadsheet.
- Editable starting point, not a final document — Review and verify all content against your project specifications and standards before use.
What you can customize
When you save this ITP to your account, every inspection row becomes editable. You can add, remove, or modify:
- Inspection activity — Description of what is being inspected.
- Inspection type — Hold point (H), Witness point (W), Review (R), or Monitor (M).
- Responsibility — Contractor, subcontractor, engineer, or client.
- Frequency — How often the inspection occurs.
- Acceptance criteria — Referenced standard or specification requirement.
- Records — Forms, test reports, or checklists required as evidence.
Why this ITP is used
To verify the vapor barrier is continuous, compliant with ASTM E1643/E1745, and protected until concrete placement.
Who uses this inspection and test plan
QA/QC engineers, site engineers, foremen, and the Client/Engineer for witnessing and acceptance.
When this ITP is prepared and submitted
Throughout the activity: at material receipt, after substrate prep, during installation, and at final pre-pour inspection.
Who receives or approves this ITP
Engineer/Client Representative for approvals per project QA plan.
Inspection scope
Material verification, substrate acceptance, sand blinding level checks, seam overlaps/tape adhesion, perimeter and penetration seals, repair verification, and final sign-off.
Typical hold, witness, and review points
HOLD: Subgrade acceptance; Repair verification; Pre-pour final. WITNESS: Seam installation; Penetrations; Perimeter terminations. [Verify per project ITP].
Typical inspection records
MIR/IR approvals, checklists, photos, repair logs, penetration logs, survey sheets, calibration certificates, as-built markups.
Important approval note
This ITP is an AI-assisted editable starting point, not a pre-approved document. Before use on any project, all inspection activities, hold points, and acceptance criteria must be reviewed and approved by the relevant parties (superintendent, principal contractor, or client representative) in accordance with your contract and project quality plan.
Always verify acceptance criteria against your applicable drawings, specifications, and regulatory requirements. Hold points must be confirmed with the relevant authority before work proceeds past that point.
Inspection and test plan
| Activity | Inspection / Test | Acceptance Criteria | Responsibility | Record |
|---|---|---|---|---|
| Material receipt – HDPE rolls, tape, mastic | Check COA/COC vs ASTM E1745 Class and thickness | Material matches approved submittal; Class A where specified; no damage | QA/QC Engineer | MIR; COA; delivery notes |
| Subgrade acceptance | Visual; level survey; density tests if specified | Compaction ≥95% MDD; level ±15 mm; dry/clean [Verify] | Site Engineer / QA/QC | IR; density & survey reports |
| Sand blinding installation | 3 m straightedge, spot levels | Thickness 10–25 mm; deviation ≤10 mm; smooth, free of sharp particles | Site Engineer / Surveyor | Checklist; survey sheet |
| Barrier layout and seams | Check overlap and tape consolidation | Overlap ≥150 mm; tape continuous; no fish-mouths/gaps | QA/QC Engineer | QC checklist; photos |
| Perimeter upturn and terminations | Visual | Continuous seal to vertical surfaces; termination secure | QA/QC Engineer | Checklist; photos |
| Penetrations sealing | Visual 360° seal; adhesion check | Boot/patch extends ≥150 mm; no gaps; mastic/tape per TDS | QA/QC Engineer / Engineer | Penetration log; photos |
| Damage/repair verification | 100% visual; adhesion check on repairs | No unpatched damage; repairs fully bonded | QA/QC Engineer | IR; repair log; photos |
| Pre-pour final inspection | Checklist; walkdown | Continuous, clean, intact barrier; access protections in place | QA/QC Engineer / Engineer | IR; sign-off; photos |
This table is a read-only public reference. Download the PDF or Excel version, or customize this ITP to edit it for your project.
Frequently asked questions
Related method statement
This Inspection and Test Plan is associated with the Method Statement – Heavy-Duty Polyethylene (HDPE) Vapor Barrier Installation Below Concrete Slab-on-Grade method statement, which describes the step-by-step construction sequence, resources, materials, equipment, safety controls, and environmental controls for this activity.
View the Method Statement – Heavy-Duty Polyethylene (HDPE) Vapor Barrier Installation Below Concrete Slab-on-Grade method statement →Continue with related inspection, method statement, article, and checklist resources.
