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Method Statement: Installation of Rigid PIR Insulation Boards in Masonry Cavity Walls (Partial-Fill) inspection and test plan example.

Inspection and Test Plan for Method Statement: Installation of Rigid PIR Insulation Boards in Masonry Cavity Walls (Partial-Fill)

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

Published 22 Jun 2026 Rev. 00 1 views
About this ITP: Structured ITP defining inspections for PIR cavity insulation: materials verification, tie spacing, clip fitment, residual cavity, taped joints, and pre-close hold point.

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 ensure insulation, moisture control, and thermal performance meet design and standards before the cavity is closed.

Who uses this inspection and test plan

Site engineers, QA inspectors, main contractor supervisors, and the Engineer/Consultant for acceptance.

When this ITP is prepared and submitted

Throughout installation at each lift, and at hold/witness points before closing the cavity or proceeding to subsequent lifts.

Who receives or approves this ITP

Engineer/Consultant for review and acceptance at designated hold/witness points.

Inspection scope

Material conformity, tie density/orientation, clip installation, board jointing and taping, residual cavity continuity, openings/trays/weep vents, and final pre-close inspection.

Typical hold, witness, and review points

PIR board installation quality; residual cavity verification; openings/trays; final pre-close inspection.

Typical inspection records

Material certificates, delivery dockets, tie density sheets, cavity gauge logs, photo records, ITP checklists, NCRs and corrective actions.

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 – PIR boards & accessories Check certificates (BS EN 13165), thickness, condition, batch codes Conforms to approvals; undamaged; correct type/thickness QA Inspector / Materials Controller Materials inspection report; delivery dockets
Cavity width and inner leaf level check Measure cavity width at 2 m intervals and corners Within design tolerance (e.g., ±10 mm) [Verify] Site Engineer Survey log; photos
Wall tie selection and spacing Verify tie type/length; measure spacing pattern; check orientation/drip Type per spec; embedment ≥50 mm; spacing e.g., 900 x 450 mm grid; enhanced around openings [Verify] QA Inspector / Site Engineer Tie density sheet; inspection checklist
Retaining clips installation Check one clip per tie at each board penetration All ties through insulation clipped; clips fully engaged QA Inspector Checklist; photos
PIR board installation quality Check tight-butt joints; stagger; cut accuracy; board flatness Gaps ≤2 mm or treated; stagger ≥200 mm; boards flush to inner leaf without bowing QA Inspector Hold point sign-off; photos
Residual cavity verification Measure cavity using gauge; inspect for mortar snots/bridging Clear residual cavity ≥design minimum (typically 50 mm) continuous Site Engineer / QA Inspector Cavity gauge log; photos; hold point release
Tape sealing of joints (if specified) Adhesion and continuity checks Continuous foil tape ≥50 mm width; clean dry surface; no lifted edges QA Inspector Checklist; photos
Openings – cavity trays, end stops, and weeps Check tray laps, stop-ends, fall; count weeps Trays installed per drawings; ≥2 weeps/opening; 450 mm c/c typical [Verify] Engineer / QA Inspector Opening detail inspection sheet; photos
Cavity closers and junction continuity Inspect closer installation and insulation continuity No thermal bypass; DPC continuity; cavity maintained QA Inspector Detail checklist; photos
Pre-close final inspection Joint walkdown of area prior to closing cavity All previous ITP items closed; no defects or obstructions Engineer/Consultant + QA Signed ITP release; punch list closure

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

Signed ITP checklists, material certificates, tie density and cavity gauge logs, and photographic records of installed PIR, clips, trays, and weeps.

At each lift and at openings, corners, and edges; record in the tie density sheet with measured spacings and embedment.

Related method statement

This Inspection and Test Plan is associated with the Method Statement: Installation of Rigid PIR Insulation Boards in Masonry Cavity Walls (Partial-Fill) 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: Installation of Rigid PIR Insulation Boards in Masonry Cavity Walls (Partial-Fill) method statement →

Continue with related inspection, method statement, article, and checklist resources.

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