AS 4654.2 · AS/NZS 1170.2
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 calculatorMembrane & sealant systems
Waterproofing 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 checkerFire · Acoustic · Thermal
External 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.
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Coming soon
F3V1a 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.