Box Hill, Maccall Community Hall

Waterproofing heritage structures often requires innovative approaches that work with the building rather than against it. Traditional methods can sometimes trap moisture, leading to long-term damage—especially in older constructions not originally designed for modern waterproofing systems.

Optimo was engaged to install a specialised cavity drainage system using products from J Newton, a trusted manufacturer from England known for high-performance waterproofing solutions in heritage environments.

This system was designed to manage water ingress by controlling and redirecting it, rather than attempting to completely block it. By installing a cavity drainage membrane, any moisture entering the structure is safely channelled away and diverted out of the building. The result is a consistently dry internal space without placing additional stress on the original building materials.

This approach is particularly effective in historic buildings, where preserving structural integrity is just as important as achieving a watertight result. The non-invasive nature of the system allows the building to “breathe,” reducing the risk of trapped moisture, mould, and deterioration over time.

Through careful installation and system design, Optimo delivered a solution that protects the internal environment while respecting the building’s heritage significance—ensuring it remains functional, dry, and preserved for years to come.

For projects involving basements, heritage refurbishments, or ongoing moisture issues, cavity drainage systems offer a reliable and sustainable waterproofing alternative.