Roof terraces above occupied space bring together structural performance and waterproofing in a way few other building elements do. While traditional detailing methods – particularly penetrative fixing of balustrades – provide a clear structural load path, they also introduce interfaces within the waterproofing layer.
These interfaces typically rely on sealants and localised detailing, which are subject to movement, environmental exposure and long-term material degradation. Because the waterproofing layer is concealed beneath finishes, early-stage deterioration may go undetected until issues emerge within the building below.
As expectations around lifecycle performance, maintenance and risk continue to evolve, there is growing industry focus on whether these accepted detailing approaches remain appropriate.
Systems such as BalcoDeck®, developed by Balconette, respond to this challenge by enabling structural load transfer without penetrating the waterproof membrane. By maintaining membrane continuity, they reduce reliance on sealant-dependent interfaces and help mitigate long-term risk within the roof build-up.
Read the full article on Balconette here.
