A non-penetrative balustrade and decking solution designed specifically for finished, waterproofed flat roofs.
BalcoDeck® allows homeowners, builders and architects to safely install a structurally compliant balustrade and decking system without drilling into or compromising the roof membrane.
The hidden problem BalcoDeck® solves
The roof is finished. Then someone asks for a balustrade.
For years, the same frustrating scenario kept repeating: a client completes their roof terrace—GRP, single-ply membrane, insulation, the whole assembly—and only at the end of the build do they decide they want a balustrade.
They contact a balustrade company and proudly share photos of their newly finished roof, only to be told they cannot drill through the waterproofing without risking leaks or voiding guarantees.
A finished roof
The waterproofing and insulation are already complete.
A late requirement
A balustrade or usable deck is now needed after the roof build-up has been finished.
The problem
Conventional structural fixing normally means reaching the primary structure below the insulation and membrane.
Why BalcoDeck® was developed
Solving the root problem instead of creating another workaround.
After encountering this exact situation over and over again, the need for a new solution became obvious. Every project required inventing a workaround, coordinating with roofers, finding structural fixing points blind, attempting to re-waterproof penetrations and hoping that the system would not leak.
BalcoDeck® was created to solve the root problem, not just treat the symptoms.
How BalcoDeck® works
The structure sits above the roof, not through it.
BalcoDeck® is a patented, non-penetrative balustrade and decking system designed to sit directly on top of the finished roof. It creates an independent structural platform, so the waterproofing does not need to be drilled or penetrated.
No drilling through the membrane, insulation or primary roof structure.
The independent platform supports the balustrade and decking and deals with structural loads, wind loads and uplift.
Structural forces are transferred into the BalcoDeck® substructure rather than through the waterproofed roof.
Where the idea came from
A repeated site problem became a new system.
The idea for BalcoDeck® did not come from a single project, but from years of seeing the same client problem repeat itself. The roof was finished, the waterproofing was complete, the balustrade was needed after the fact—and nobody had planned for it.
BalcoDeck® was born directly out of this industry-wide gap: a need for a safe, reliable, non-invasive way to install balustrades on completed roof terraces.
In summary
BalcoDeck® lets the roof remain protected while creating the structure above it.
BalcoDeck® is a non-penetrative structural balustrade and decking system designed for already-finished, waterproofed roofs. It is engineered to meet structural and regulatory loads, avoid penetrating membranes or voiding warranties, and remove the guesswork of trying to find structural fixing points after the fact.
It was developed because the industry needed a smarter, safer solution—one that lets people finish their roof terrace properly without compromising the waterproofing that protects the building beneath.
A non-penetrative balustrade and decking system for finished, waterproofed flat roofs.
No. BalcoDeck® creates an independent structural platform above the finished roof.
Yes. BalcoDeck® is protected by UK Patent GB2636232.
What would you like to do next?
Explore whether BalcoDeck® is right for your project.
Start with your roof, see what completed projects look like, or understand the likely cost. If you need the technical detail, the documents are just below.
See real installations, finishes and different ways BalcoDeck® has been used on roof terraces.
View photo gallery → Plan your project What does a BalcoDeck® cost?Understand the factors that influence price and what to consider when budgeting for your project.
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