Stormtech FlexiFlange for effective drainage waterproofing

Stormtech has released the FlexiFlange, a drainage product designed to improve waterproofing performance in building applications. The system appears to offer enhanced sealing and drainage management at connection points, addressing a common source of water ingress in building envelopes. The product targets the interface between drainage layers and structural elements where moisture penetration commonly occurs.

For Australian waterproofing contractors and remedial building specialists, new drainage solutions merit attention given the prevalence of water ingress defects in Class 2 buildings across the country. Effective drainage design at critical junctions—particularly around penetrations and transitions—directly reduces the likelihood of latent defects and costly remediation. Contractors implementing drainage rectification works or new waterproofing systems should evaluate whether products like this provide practical improvements over existing detailing standards and compliance with AS/NZS 4654 or equivalent requirements.