Sika-Trocal’s high-performance waterproofing roof system ensured a a set of stylish, sustainable apartments at an exciting waterside housing development were completed ahead of schedule.

The Nash Mills Wharf complex in Hemel Hempstead, Hertfordshire is set by the banks of the Grand Union Canal. To facilitate time-effective construction without compromising on quality, an easy-to-install, proven watertight roofing system was required. Roofing sub-contractors Seeco selected Sika-Trocal Type S. Ideal for mechanically-fastened roofs in new build and refurbishment applications; it carries full BBA accreditation with a 35-year lifespan.

Seeco applied the Type S system to a 3,000m2 area consisting of flat and pitched roofs. The homogeneous single-ply sheet membrane contains ultra violet stabilisers and fire retardants and is highly resistant to ageing and industrial pollutants.