ITP software for waterproofing

WNDW keeps your waterproofing ITP on site, wet area by wet area. Each step — substrate check, primer, membrane coats, flood test — is ticked as it's done, with a photo before it's tiled over, and each level is signed off by your foreman and the builder. New for waterproofers: from $99 a month per project, 14 days free.

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What does a waterproofing ITP track?

An example — stages are set to your job and the builder's ITP.

  1. Substrate inspected — falls to waste, set-downs, wall-floor junctions, screed cured.
  2. Puddle flanges and wastes — installed and sealed.
  3. Primer — applied to the prepared substrate.
  4. Bond breakers and reinforcing — fillets or bond breaker at junctions, reinforcing at corners and penetrations.
  5. Membrane coat 1 — with its own date and time.
  6. Membrane coat 2 — so the gap between coats is on the record.
  7. Perimeter angle or water stop — at the door or shower.
  8. Flood test — where the spec or the builder asks for one.
  9. Handover to screeder or tiler — the last tick before it disappears.

Why does the record matter once it's tiled?

Once the screeder or tiler has been through, nobody can see the membrane again. If a unit leaks two years later, the questions are about what was done, in what order, and when: was the substrate right, did the second coat go on after the first had cured, was the flood test run. A dated tick with a photo on each wet area answers that without anyone lifting a floor.

What does the builder's ITP usually ask for?

Many builders' waterproofing ITPs follow the project spec and AS 3740 for internal wet areas, or AS 4654 for external membranes. The usual checks: substrate falls and set-downs, flanges and wastes, bond breakers at junctions, membrane coats and cure time, perimeter angles, and a flood test where it's specified. WNDW doesn't decide what's acceptable — it records that each check was done, by whom and when, with photos.

How does it work on a waterproofing job?

Each wet area is one item, set up level by level from your take-off. Each step on your ITP is a stage. We set WNDW up in your trade's words, so your crew and your ITP say wet areas, not openings. Ticks and photos save with no reception and sync when you're back in range. When a level is done it closes and locks, your foreman signs on the phone, and the builder signs from an emailed link.

WNDW is the subcontractor's record. It helps you keep evidence. It doesn't replace the builder's QA, certifier inspections or compliance certificates.

What does it cost?

From $99 a month per project, sized by the job and capped per project. Unlimited users. No setup fees. 14 days free. A tower with hundreds of wet areas costs no more than the project cap. See pricing.

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Questions people ask

Do I need a flood test stage?

Only if the job's spec or the builder's ITP calls for one. Stages are set per job, so add it where it's required and leave it off where it isn't.

Can I record cure time between coats?

Each coat is its own stage with its own date and time, so the gap between coats is on the record. WNDW doesn't time the cure for you.

Does the builder need an account to sign?

The builder signs from an emailed link in their phone's browser — no app, no account.

Does WNDW make my work meet AS 3740?

No software can — the work does. WNDW keeps the evidence that each check on your ITP was done, by whom and when, with photos. It doesn't replace the builder's QA or a certifier's inspection.

How is it priced for a tower with hundreds of bathrooms?

Per project, from $99 a month, sized by the job and capped per project — a tower with hundreds of wet areas costs no more than the cap.