Use this record for
Ordinary indoor wet-area wall and floor substrates immediately before primer or membrane installation. Focuses on handover from substrate/preparation work to the waterproofing installer.
Outside this record: Membrane coat inspection, pre-tiling release, structural design acceptance, concrete moisture design or substrate engineering assessment. No universal moisture percentage, surface profile, fall value, drying period or repair method is set here.
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, class and compliance pathway
- Identify the project building class, jurisdiction, adopted edition, variations and approved compliance pathway; a published code edition does not establish applicability.
- Substrate materials and construction records
- Concrete, screeds, sheet flooring and wall linings have different system compatibility and preparation requirements.
- Approved finish levels, falls and drainage details
- Compare to issued drawings/criteria; this record does not invent the design values.
- Membrane, primer and preparation products
- Use exact manufacturer instructions for the selected substrate and system.
- Required substrate condition tests and acceptance
- Enter method/value only when required and defined by approved project/system evidence; otherwise raise a clarification.
How to use the checklist
- Inspect and record the actual substrate by room and surface before primer/membrane work begins.
- Record type, visible condition, defects, drainage/interface geometry and preparation status. Add measurements only against stated project criteria and approved method.
- Consult the exact selected membrane/primer instructions for substrate compatibility, dryness, preparation and primer; manufacturer values are product-specific.
- Mark unresolved cracks, contamination, movement, ponding, incompatible materials or missing acceptance criteria Pending; assign an action and recheck.
- This is a substrate handover record. The person checking does not gain design authority or certify the compliance pathway by signing it.
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.
WS-01 · Room, substrate and system match
Confirm the substrate inspection is for the correct room/surface and the substrate type is permitted by the approved membrane/primer system.
- How to check
- Compare room/element IDs, substrate build-up and product submittal/TDS; inspect accessible surface and record where condition changes.
- What defines acceptance
- Observed substrate type and condition align with approved drawings and selected system scope; unlisted substrate or undocumented build-up remains Pending.
- Project document to cite
- Approved room details, substrate submittal and current selected membrane/primer TDS.
Topic references: ABCB, NCC 2022 Housing Provisions, Part 10.2 Wet area waterproofing; ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet.
- Room / surface
- Substrate type
- Membrane / primer
- Drawing / submittal rev
- Result, inspector and date; issue and recheck reference
WS-02 · Surface soundness and damage
Inspect for loose/friable areas, weak edges, spalls, cracks, holes, ridges or defects likely to disrupt preparation or membrane continuity.
- How to check
- Visual and tactile inspection; map each defect on room sketch/photo and record size/location only when measured using project method.
- What defines acceptance
- Surface is repaired/accepted to the cited project and system criteria; unresolved movement or structural defects are referred for design disposition, not hidden by coating.
- Project document to cite
- Approved substrate criteria, repair detail and selected system TDS.
Topic references: ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet; Sika Australia, Sika SealTape F Product Data Sheet.
- Defect / location
- Measured value
- Disposition ref
- Recheck photo
- Result, inspector and date; issue and recheck reference
WS-03 · Cleanliness and contaminants
Check that dust, oil, grease, curing compounds, sealers, old adhesive/coatings, laitance and loose debris relevant to this substrate have been addressed.
- How to check
- Inspect after the specified mechanical/vacuum/cleaning preparation; record observed contaminants and completed method.
- What defines acceptance
- Prepared surface meets the exact system’s stated cleanliness condition; remaining contaminants are removed and rechecked before primer.
- Project document to cite
- Approved preparation method and current membrane/accessory TDS.
Topic references: ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet; Sika Australia, Sika SealTape F Product Data Sheet.
- Contaminant / area
- Prep method / date
- Surface after prep
- Photo ref
- Result, inspector and date; issue and recheck reference
WS-04 · Moisture / dryness requirement
Determine whether the approved project or selected system requires a moisture/dryness test and whether the specified method and criterion are available.
- How to check
- Review the exact product TDS and project specification; if testing is specified, record test location, method, instrument and actual value without substituting another method.
- What defines acceptance
- Test result meets only the cited applicable criterion. If no applicable method/value or system requirement is identified, record the gap and obtain direction; no generic moisture limit is implied.
- Project document to cite
- Project specification and current local membrane/primer TDS, including test method and stated substrate scope.
Topic references: ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet.
- Test / location
- Method / instrument
- Actual value / unit
- Criterion source
- Result, inspector and date; issue and recheck reference
WS-05 · Falls, levels and drainage readiness
Check floor levels/falls, local ponding and waste/flange location against the approved detail before membrane work.
- How to check
- Use the project’s stated measurement method and reference points; map actual readings and drain/threshold interface. Do not infer required falls from another building class or pathway.
- What defines acceptance
- Observed conditions satisfy the cited approved project details and applicable code pathway; discrepancy, ponding or missing datum is referred before covering.
- Project document to cite
- Approved architectural/wet-area and drainage drawings; applicable adopted code clauses and project criteria.
Topic references: ABCB, NCC 2022 Housing Provisions, Part 10.2 Wet area waterproofing; ABCB, Waterproofing in houses.
- Point / datum
- Actual level / fall / unit
- Drain / threshold ID
- Drawing / action ref
- Result, inspector and date; issue and recheck reference
WS-06 · Joints, penetrations and repair preparation
Identify movement joints, cracks, wall/floor changes, penetrations and prior repairs that require system-specific treatment before membrane installation.
- How to check
- Walk the surface and compare each detail to approved drawings and current system accessory instructions; photograph and map omitted details.
- What defines acceptance
- Required detail and repair method are approved, accessible and ready for application; unresolved movement/design questions or incompatible repairs remain open.
- Project document to cite
- Approved wet-area details and exact membrane/accessory 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.
- Detail / location
- Approved treatment
- Repair evidence
- Open RFI
- Result, inspector and date; issue and recheck reference
WS-07 · Preparation, primer and handover readiness
Confirm specified preparation is complete and the approved primer/product, surface condition, environmental checks and handover are ready for the next operation.
- How to check
- Compare actual prepared surface and planned primer with exact system instructions; record applicable weather/temperature check only where project/TDS requires it.
- What defines acceptance
- No unresolved defect or missing system/project criterion remains; ready status is recorded by the assigned role. This entry is not formal client release unless project says so.
- Project document to cite
- Project ITP/work method, current selected primer/membrane TDS and subcontract handover requirement.
Topic references: ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet; Construction Quality Association, Guide: How to create an ITP.
- Prep record
- Primer / batch
- Required readings
- Handover / date
- Result, inspector and date; issue and recheck reference
When a check cannot be closed
| Situation | What to record or resolve |
|---|---|
| Substrate type or build-up is not shown in approved documents. | Record the observed construction and obtain design/project confirmation of suitability before applying a system. |
| Substrate has contamination, loose material, sharp edges, cracks, laitance or previous coatings. | Record locations and disposition; use only the approved preparation/repair method for that substrate and system, then document recheck. |
| Moisture condition is required but no applicable method/limit is available. | Leave the criterion unresolved and ask the project/system authority for the test method, threshold and decision role; do not copy a value from another manufacturer. |
| Falls or drainage geometry differs from approved details or is unclear. | Record measured location and drawing reference; request instruction before membrane covers the surface. |
Substrate handover before membrane
“Ready” records this site handover only; it does not approve substrate design or confirm code compliance. The waterproofing installer and any appointed verifier record their own roles. Missing suitability or acceptance criteria stay open.
Pre-installation handover status options in the blank record:
- Ready for installer handover
- Hold — rectify and recheck
- Refer — criteria or instruction required
Record the assigned roles: Substrate installer / role / date; Waterproofing installer receiver / date; Site verifier / role / date; Instruction authority / reference.
Teaching example — substrate clarification
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 ticket RFI-WP-014 are invented; no substrate has actually been inspected.
- Requirement to carry into the record
- Illustrative requirement: the substrate type and falls must match the approved room detail and the selected system must permit that substrate. The example intentionally supplies no moisture limit, repair threshold or measured result.
- Illustrative reference
- Illustrative only: fictional A-204 Rev B plus fictitious clarification RFI-WP-014; replace with project documents.
- What the site record should capture
- Record the room/surface, actual substrate, exact drawing and system instruction, observed condition, missing criterion and person assigned to resolve it.
Source notes and limits
- ABCB, NCC 2022 Housing Provisions, Part 10.2 Wet area waterproofing
Official topic reference from NCC 2022 Housing Provisions, including the variations shown on that page. Confirm the project building class, compliance pathway, adopted edition and relevant state/territory variations before using any provision. This reference does not set universal acceptance criteria. Read: Clauses 10.2.1–10.2.32; especially 10.2.6–10.2.13, 10.2.22–10.2.30. Checked 2026-10-06.
- ABCB, Waterproofing in houses
Official introduction for Class 1 houses. Its national overview omits state/territory variations and does not establish requirements for other building classes or compliance pathways. Read: Scope/target audience and sections on NCC 2022 Volume Two H4, Housing Provisions Part 10.2 and AS 3740 options. Checked 2026-10-06.
- ABCB, Editions of the National Construction Code
Official NCC edition index. Use it with the project documents and jurisdictional adoption/transition rules to identify the governing edition. Publication of a code edition does not by itself establish which edition applies to a particular project. Read: Edition and amendment listings; then consult the project jurisdiction for adoption and transition provisions. Checked 2026-10-06.
- ARDEX Australia, WPM 155 Rapid Plus Technical Data Sheet
First-party example of one internal/external under-tile system. Supports prompts to record substrate preparation, selected primer, junction/detail method, application coats, product-specific coverage/film build, curing and pre-cover inspection. Any manufacturer values apply only when this exact product/system is approved and the current local data sheet is verified; none are prefilled as generic acceptance criteria. Read: January 2025 issue, pp. 1–3: substrate preparation, primer, detailing, application, curing, flood testing and tiling; manufacturer warns newer revision may exist. Checked 2026-10-06.
- Sika Australia, Sika SealTape F Product Data Sheet
First-party accessory example for compatible Sika systems; supports documenting substrate cleanliness/priming, embedding, tape continuity/overlaps and membrane coat interface. Requirements are accessory/system specific and only apply after checking the selected membrane TDS and approval. Read: December 2025 version 05.01, pp. 1–2, substrate preparation and application instructions. Checked 2026-10-06.
- Construction Quality Association, Guide: How to create an ITP
ITP record design guidance only: identify what is checked, how, against what source, who records it, and what evidence follows. It supplies no waterproofing technical acceptance criteria. Read: Whole article; ITP requirement/inspection/evidence structure. Checked 2026-10-06.
Continue the work sequence
- Internal wet area waterproofing ITP template
- Wet area waterproofing inspection checklist
- Pre-tiling membrane inspection checklist
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.