Balcony drainage systems in multi-residential design: common challenges, solutions and impact of NCC 2025

Balconies in multi-residential buildings are popular for enhancing indoor and outdoor living, but require effective drainage systems. Poor drainage can cause water to pool, causing structural damage and long-term deterioration of the building. As multi-residential developments continue to expand across Australia, the complexity of balcony designs has grown. Proper drainage design is essential to avoid defects and ensure the durability of new construction.

Balcony drainage systems in multi-residential design: common challenges, solutions and the impact of NCC 2025 looks at the reasons why balconies leak and the drainage solutions that will prevent water from accumulating and entering the environment interior We also consider upcoming changes related to water removal and waterproofing in the 2025 update of the National Building Code (NCC).

An Australian owned company, Stormtech has been at the forefront of drainage innovation for over 35 years. As the original inventors of permanent formwork slot drainage, linear drainage for bathroom applications and threshold drainage, Stormtech has consistently pushed the boundaries of what is possible in the industry.

Download this white paper to learn why balconies leak and drainage solutions that will prevent water from pooling and entering the indoor environment.