Wet-area waterproofing · Free field record

Wet Area Waterproofing Inspection Checklist

A room-by-room field record for documenting an approved internal wet-area membrane installation from system identification through detailing, application and evidence handover.

Excel provides separate project setup, field record and issue/handover sheets, to keep project requirements, observations and follow-up separate. Word is editable; PDF is arranged for printing. These files are blank records, with no completed results.

Need an ITP prepared for your project?

Send your drawings, specifications and contractor requirements. Receive a project-specific ITP and matching blank site records in Excel, Word and PDF.

USD 99 per defined work package · Within 24 hours after the required project files are complete.

Use this record for

Ordinary indoor bathrooms, showers, laundries and similar internal wet areas using a project-approved under-tile waterproofing system. Records the selected system and actual installed layers/details by room or zone.

Outside this record: External membranes, roofs, facades, below-ground tanking, pools, tanks, podiums/terraces, plumbing testing and design/certification. This is not a substitute for product instructions, approved shop drawings, ITP, inspection by an appointed certifier or project release.

Blank record for ordinary indoor wet areas. Fill criteria from the approved project details and exact compatible system instructions, after confirming the applicable project compliance basis. Observations, test results and signatures stay blank until the work is checked. Recording installer work or site observations does not grant certification or contractual release authority.

Collect these project inputs first

Project jurisdiction and adopted code
State/territory adoption and variations differ; the NCC Housing Provisions pathway is limited by class and project context.
Building class and room use
Confirm whether domestic Housing Provisions, another NCC pathway or project-specific performance design applies.
Approved compliance pathway and drawing references
Identify the project building class, jurisdiction, adopted edition, variations and approved compliance pathway; a published code edition does not establish applicability.
Approved product system and current local instructions
Primer, accessories, substrate compatibility, application and cure conditions vary by system; attach exact product names/revisions.
Room/zone schedule and wet-area extent
Locate observations and separate conditions, rework and evidence by room/zone.
Required inspections, tests and release responsibilities
Enter only project-assigned checks, notice points and release authority; do not treat installer verification as certification.

How to use the checklist

  1. Complete project and room identification; record approved drawings, revisions, chosen compliance pathway and exact product system.
  2. Use this main record during installation. Enter what was applied and observed at each listed room/zone and junction; attach product labels, batch records and dated photos where required.
  3. Write acceptance from approved project documents or the selected system’s current instructions. If required documents are missing, mark Pending and raise a request; do not replace a missing value with a generic rule.
  4. Use the substrate-readiness record before primer/membrane and the pre-tiling record after installation/cure, immediately before concealment or handover.
  5. Installer records work performed. A separately appointed site verifier records observations. The project’s named certifier/design reviewer/release authority makes any formal compliance or contractual decision.

Checks and the records they need

Fill project criteria from approved documents before inspection. The fields below show what the downloaded form asks you to record; the web page does not save or approve site results.

WW-01 · Project and room basis

Confirm the room/zone, wet-area extent, approved compliance pathway, drawing revisions and current system documents are identified.

How to check
Compare room schedule and document register with the work location; record exact identifiers and unresolved gaps.
What defines acceptance
Room, scope and applicable criteria are traceable to current approved documents; conflicts and missing criteria are logged before work proceeds.
Project document to cite
Approved wet-area schedule, drawings, specification, NCC pathway/design and project ITP (enter exact revision).

Topic references: ABCB, NCC 2022 Housing Provisions, Part 10.2 Wet area waterproofing; ABCB, Waterproofing in houses; ABCB, Editions of the National Construction Code; Construction Quality Association, Guide: How to create an ITP.

Blank record fields
  • Room / zone
  • Drawing revision
  • Pathway / jurisdiction
  • Open RFI
  • Result, inspector and date; issue and recheck reference

WW-02 · Installed materials and batch traceability

Confirm each membrane, primer, tape/reinforcement and sealant observed belongs to the approved compatible system and is identifiable.

How to check
Compare packaging/product identifiers, batch/expiry where stated and delivery/submittal records with approved schedule; photograph labels if required.
What defines acceptance
Materials match the approved submittal and applicable current local manufacturer instructions; substitutions and damaged/unclear materials are dispositioned.
Project document to cite
Approved product submittal, labels, batch records and current manufacturer TDS/SDS.

Topic references: ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet; Sika Australia, Sika SealTape F Product Data Sheet.

Blank record fields
  • Product / component
  • Batch / expiry
  • Submittal ref
  • Label photo
  • Result, inspector and date; issue and recheck reference

WW-03 · Primer and prepared-area coverage

Record primer selected and observe that the prepared work area received the specified primer where required before membrane installation.

How to check
Walk the room/zone; compare observed substrate type, primer and sequence with the selected system instructions; note unprimed, contaminated or disturbed areas.
What defines acceptance
Primer choice and coverage/sequence satisfy the approved system and project documents; undocumented compatibility remains unresolved.
Project document to cite
Approved system submittal and current primer/membrane TDS; substrate readiness record.

Topic references: ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet; Sika Australia, Sika SealTape F Product Data Sheet.

Blank record fields
  • Substrate / area
  • Primer / batch
  • Application date
  • Coverage photo
  • Result, inspector and date; issue and recheck reference

WW-04 · Junctions, movement joints and penetrations

Record treatment of wall/floor and wall/wall junctions, changes of plane/material, movement joints, drains, pipe penetrations and niches present in this room.

How to check
Inspect each detail before concealment; note the selected accessory/detail and continuity, adhesion and visible damage. Photograph locations against room plan.
What defines acceptance
Details are continuous and follow approved drawings and selected product-system instructions; unresolved or damaged details are repaired and rechecked before covering.
Project document to cite
Approved detail drawings, applicable NCC/project clauses and exact accessory/membrane TDS.

Topic references: ABCB, NCC 2022 Housing Provisions, Part 10.2 Wet area waterproofing; ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet; Sika Australia, Sika SealTape F Product Data Sheet.

Blank record fields
  • Detail / location
  • Accessory / method
  • Continuity / defect
  • Photo / repair ref
  • Result, inspector and date; issue and recheck reference

WW-05 · Drain and waterstop interfaces

Check the membrane connection to the floor waste/drainage flange and applicable waterstop/threshold interface against the approved detail.

How to check
Inspect before tiling; record flange/interface type, termination and any accessible connection evidence; compare with project details and system guidance.
What defines acceptance
Connection and termination match the approved detail and selected system; missing flange detail, inaccessible work or incompatible interface is referred before concealment.
Project document to cite
Approved drainage, threshold and waterstop details; applicable NCC pathway and manufacturer instructions.

Topic references: ABCB, NCC 2022 Housing Provisions, Part 10.2 Wet area waterproofing; ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet.

Blank record fields
  • Drain / threshold ID
  • Flange / waterstop
  • Termination note
  • Detail / photo ref
  • Result, inspector and date; issue and recheck reference

WW-06 · Membrane application by coat / zone

Record the coat/area sequence, materials, applicator and dates from direct observation or an identified installer record. Keep those evidence sources distinct. Include film-build, coverage or interval readings only where required by the approved project/system.

How to check
Locate each coat on a room sketch or annotated photograph. Enter any required readings with units and method; distinguish direct observations from an attributed installer log, naming its author and reference. Compare the record with the approved system instructions and specification.
What defines acceptance
Application sequence and documented criteria match the project-approved system. Any numeric film build, coat count, coverage or interval comes from the exact current system document and project requirement, not this blank template.
Project document to cite
Approved product submittal, current membrane TDS and project specification/detail.

Topic references: ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet.

Blank record fields
  • Room / coat / date
  • Recorded reading / unit
  • Method / TDS reference
  • Installer log / author
  • Result, inspector and date; issue and recheck reference

WW-07 · Installer completion statement and work records

Collect the installer’s scoped completion statement and linked records, including product/batch information, areas completed, exceptions and repairs.

How to check
Review the signed installer record and compare listed rooms/areas and exceptions with the work schedule; keep installer statement distinct from independent inspection or statutory certificate.
What defines acceptance
Records identify actual work and open items and are submitted to the designated project recipient; they do not imply independent certification or client acceptance.
Project document to cite
Project quality plan, subcontract requirements, product-system documentation and project handover register.

Topic references: Construction Quality Association, Guide: How to create an ITP; ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet.

Blank record fields
  • Installer / role
  • Areas / dates
  • Exception / repair ref
  • Submission ref
  • Result, inspector and date; issue and recheck reference

WW-08 · Installer / verifier / formal release separation

Record the actual installer self-check, any site verifier observation, and any separately required certification or formal release as distinct events.

How to check
Enter person, role, date, scope, evidence and decision reference only when performed; use Pending when external sign-off has not occurred.
What defines acceptance
Each entry is attributed to the actual role and authority. A visual observation or installer declaration is not presented as engineering approval, statutory certification or contractual release.
Project document to cite
Project ITP, contract, approved compliance pathway and named appointment/authority documents.

Topic references: Construction Quality Association, Guide: How to create an ITP; ABCB, Editions of the National Construction Code.

Blank record fields
  • Event / scope
  • Person / role
  • Date / outcome
  • Release / certificate ref
  • Result, inspector and date; issue and recheck reference

When a check cannot be closed

SituationWhat to record or resolve
The building class, adopted code edition, jurisdiction variation or performance pathway is not confirmed.Record the gap and obtain the project’s approved compliance basis before treating any clause as acceptance.
A different primer, membrane, tape or sealant is proposed.Pause that interface and obtain documented compatibility/approval against the selected system and project submittal.
A required test, inspection, notice point or release signer is unclear.Check contract/ITP and request the responsible party’s written direction; do not infer a universal flood test or release.
An installer has completed their own visual check.Record it as installer verification only; separately record any verifier inspection and formal project acceptance.

Installation record status

Installer records the work performed; a site verifier records only assigned observations. This status does not certify compliance, approve engineering or release the area for covering. Record any separate contractual/certifier decision and reference independently.

Installation handover status options in the blank record:

Record the assigned roles: Installer name / role / date; Site verifier name / role / date; Receiving party / role; Formal decision authority / reference.

Teaching example — room record prompt

Fictional teaching example only. These are illustrative document references, not a real project, engineering values or completed inspection results.

Fictional training scenario only. Example room B-02 and document WA-DTL-07 Rev C are invented identifiers, not project evidence. No installation or inspection is represented as completed.

Requirement to carry into the record
For the example, the requirement is to identify the approved membrane and compatible junction accessories and record each room’s actual installation against the current approved room detail. No thickness, cure time, inspection result or pass status is supplied.
Illustrative reference
Illustrative only: fictitious WA-DTL-07 Rev C; actual project document must replace it before use.
What the site record should capture
Which room/zone and detail were checked; which exact product/batch and junction treatment were observed; what photo or repair reference supports the entry?

Source notes and limits

Continue the work sequence

This field record documents checks after they are carried out. An ITP sets the work sequence, project criteria, responsibilities and required records before the work starts.

Need an ITP prepared for your project?

Send your drawings, specifications and contractor requirements. Receive a project-specific ITP and matching blank site records in Excel, Word and PDF.

USD 99 per defined work package · Within 24 hours after the required project files are complete.