Vertical Termination Height Calculator
Enter an Australian address and building height. Get the site ULS wind speed (Vh,u) and the minimum external waterproofing upstand in millimetres — instead of defaulting to the 150 mm rule of thumb.
Open calculatorWaterproofing Compatibility Checker
Select two materials to see instantly whether they bond — covering bitumen, silicone, polyurethane, acrylic, PVC and polyester resin systems. Catch incompatibility before it becomes a callback.
Open checkerExternal Wall Systems Database
Compare complete external wall systems by FRL, acoustic Rw and total R-value — every figure grounded in the manufacturer design guide and linked to the exact source page. Filter by cladding type, manufacturer and insulation.
Open databaseWall Type Schedule Builder
Pick a cladding system by manufacturer to stack a scaled wall section, read off the total wall thickness and see the NCC pathway — Performance Solution or Deemed-to-Satisfy. Save wall types and export to PDF, CSV or a shareable link.
Open builderF3V1a Weatherproofing Risk Score
Work through the NCC F3V1a risk factors for your facade and get a live score — with the design moves that pull it back under 20.