New Zealand · AI-powered · Free to try
Free Waterproofing ITP Generator
Generate a complete Inspection & Test Plan for waterproofing works in seconds. Covers substrate preparation, primer application, membrane installation, detail laps and terminations, flood testing, and protection — with hold points for critical concealment stages.
- Waterproofing-specific hold points and witness points
- Aligned with AS/NZS standards and the NZ Building Code
- Sign up free to download your PDF
Trade
Scope
Brand
Project
Finish
What trade is this ITP for?
We'll tailor the inspection items, hold points and standards to your trade.
Applicable Standards (AS/NZS & NZ Building Code)
- AS 4654 — Waterproofing of Internal Wet Areas
- AS 3740 — Waterproofing of Domestic Wet Areas
FAQ
- What is the most important hold point for waterproofing?
- The flood test is the most critical hold point. A minimum 24-hour standing water test must be conducted and signed off before any tiling or screed is applied over the membrane. This is the last opportunity to detect failures before concealment. The ITP should record the test duration, water level, and result with photographic evidence.
- What New Zealand Standard covers waterproofing ITPs?
- AS 4654 (Waterproofing of Internal Wet Areas) is the primary standard for commercial projects. AS 3740 covers domestic wet areas. Both specify substrate requirements, membrane types, application methods, and testing requirements. Most project specifications reference AS 4654 and the membrane manufacturer's installation guide.
- Do I need a separate waterproofing ITP for each wet area?
- Not typically. A single waterproofing ITP template covers all wet areas on a project, with each area recorded as a separate inspection entry. This ensures consistent criteria while tracking each bathroom, balcony, or podium individually. For complex projects with different membrane systems, separate ITPs may be appropriate.
- How do I prove the ambient conditions during membrane application?
- Most membrane manufacturers specify a humidity and temperature window for application — typically below 85% RH and within 5-30°C. Failed adhesion is one of the most common waterproofing defects, and the conversation always lands on "what was the humidity that day?" HoldPoint records the live weather (temperature, humidity, wind, condition) at the moment the inspector signs the membrane application hold point, and prints it on the approved ITP PDF. The conditions at application are part of the document, not something you have to reconstruct from BoM data later.