Free Waterproofing ITP Generator

Background

What is a Waterproofing ITP?

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 Australian 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.