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Method Statement: Pre-applied HDPE Blindside Waterproofing for Deep Basements (Shotcrete/Shoring) inspection and test plan example.

Inspection and Test Plan for Method Statement: Pre-applied HDPE Blindside Waterproofing for Deep Basements (Shotcrete/Shoring)

AI-assisted inspection and test plan connected to a method statement, with PDF and Excel export.

Published 12 Jun 2026 Rev. 00 2 views
About this ITP: This ITP defines inspections, tests, acceptance criteria, and hold/witness points for installing pre-applied HDPE blindside waterproofing to deep basements.

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 assure the installed membrane meets design water-resistance and workmanship standards before it is encapsulated in concrete.

Who uses this inspection and test plan

QA/QC engineers, site engineers, the Engineer/Consultant, and the approved waterproofing applicator.

When this ITP is prepared and submitted

From pre-start and substrate readiness through membrane installation to pre-pour and post-pour checks.

Who receives or approves this ITP

Engineer/Consultant for review and approval before works commence.

Inspection scope

Documents and materials, substrate readiness, mock-up, sheet fixing and laps, corners, penetrations, terminations, repairs, and pre-pour verification.

Typical hold, witness, and review points

Hold: Substrate readiness, mock-up approval, pre-pour. Witness: Fixing/laps, penetrations/terminations. Surveillance: Corners, repairs, post-pour.

Typical inspection records

IRs, checklists, peel test logs, photos, mock-up approvals, material certificates, and as-built drawings.

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
Pre-start documentation and materials Verify approvals, SDS, COC/COA, storage conditions Submittals approved; materials per EN 13967; batches recorded QA/QC Engineer / Engineer (Witness) IR, Material inspection report
Substrate readiness (SOE/shotcrete) Surface cleanliness, voids/protrusions, moisture, fillets No standing water >3 mm; voids >20 mm filled; protrusions ≤5 mm; fillets 25 mm QA/QC Engineer / Engineer (Witness) Checklist, Photos
Mock-up verification Peel check of sample lap per ASTM D903 practice Meets/Exceeds manufacturer minimum peel [Verify] QA/QC / Engineer (Witness) / Manufacturer Rep Mock-up IR
Membrane installation – fixing and layout Check fastener type/spacing; orientation and overlap directions Top fixings ≤300 mm c/c; laps shingle downward QA/QC (Hold) / Engineer (Witness) IR, Checklist
Side and end laps Visual continuity; random peel tests: 1/20 m or 2/day min Side ≥100 mm; End ≥150 mm; peel ≥ manufacturer min [Verify] QA/QC / Engineer (Surveillance) Peel test log, IR
Corners and upstands Check fillets, corner strips/preforms, consolidation Continuous coverage; no bridging/gaps QA/QC / Engineer (Surveillance) Checklist/photos
Penetrations and terminations Boot fit, hydrophilic waterstop placement, grout annulus; termination bar spacing and sealant bead Boot lap ≥150 mm; 360° seal; bar ≤200 mm c/c; continuous bead QA/QC (Hold) / Engineer (Witness) IR, Photos
Repairs and penetrations sealing Patch size and adhesion Patch ≥150 mm beyond defect; edges sealed QA/QC / Engineer (Surveillance) Repair log
Pre-pour inspection 100% visual of area; confirm protection prior to rebar; cleanliness All criteria met; IR signed; NCRs closed QA/QC (Hold) / Engineer (Witness) IR sign-off
Post-pour verification Check terminations/penetrations; sealant condition No visible leakage; re-seal as needed QA/QC / Engineer (Surveillance) Inspection record, As-built

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

Typically one per 20 m of sealed lap or a minimum of two per day. Confirm frequency and acceptance with the manufacturer and project specifications.

Completion of all membrane works, repairs, terminations, and protection, with signed IR confirming acceptance by QA/QC and the Engineer/Consultant.

Not typically feasible. Quality is assured through visual inspection, lap peel verification, and strict adherence to manufacturer detailing.

Related method statement

This Inspection and Test Plan is associated with the Method Statement: Pre-applied HDPE Blindside Waterproofing for Deep Basements (Shotcrete/Shoring) 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: Pre-applied HDPE Blindside Waterproofing for Deep Basements (Shotcrete/Shoring) method statement →

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