NVELOPE cladding support systems have been installed on Sterte Court, a development of high rise and low rise flats in Poole, which has received a facelift that has not only improved the visual appearance and sustainable factors, but also extended the buildings’ life for at least 30 years.

Sterte Court is a residential building in Poole, which dates back to the 1960s. When originally built, the two 10 storey and two 4 storey tower blocks consisted of 134 one and two-bedroom flats. Constructed with rendered concrete wall panels on a concrete frame, the buildings were poorly insulated. A project to upgrade the development began in 2013, when Poole Housing Partnership, an Arms Length Management Organisation, which was set up under the Government scheme to bring investment for improvements to homes across the Borough of Poole, got involved.

Poole Housing Partnership appointed Keepmoat as the main contractor for this £6.7 million project. With the aim being to improve the residents’ living conditions, reduce fuel poverty, and update the visual appearance of the four blocks, the project would take around 18 months to complete. When it came to focussing the attention on the new façade, NVELOPE’s NV1 cladding support system was specified to hold the vertical cladding in place, and fitted by Kent-based façade installer, Teiko Ltd.

“The project benefited from ECO (Energy Company Obligation) funding, which requires the systems used to be BBA certified, and for the installer to be PAS 2030 certified” comments Adrian Buckmaster, Technical Manager, Teiko Ltd. “NVELOPE is BBA certified and Teiko Ltd is the only installer to be certified for Rainscreen Cladding to PAS 2030 standard.”

A key requirement for this project was to improve the thermal bridging. Thermal bridges cause increased flow of heat and need to be considered in the design and installation of a façade system. Since the fixing of ventilated cladding must go through the thermal insulation into the substrate, it cannot be avoided. It’s therefore important to achieve a thermal decoupling of the substructure from the ventilated façade through thermal separation layers. NVELOPE’s N1 brackets are pre-assembled with thermal isolators which help reduce thermal bridging and also prevent a chemical reaction which could occur between the aluminium bracket and the lime in a concrete frame.

NVELOPE’s NV1 flexible point brackets were well suited for this project as they allow for expansion and contraction of the cladding when under strain from various weather conditions including strong winds. The NV ranges provides a secure fixing solution for façade materials including high pressure laminate (HPL), timber, weatherboard, fibre cement, fibre concrete, ceramic, thin stone, aluminium composite material (ACM) and many other metals. Stand-off sizes for the vertical ranges are from 40 – 300 mm.

NVELOPE holds extensive stock to ensure orders can always be met and where necessary, immediate delivery can be provided. All NVELOPE cladding systems can be engineered to project specific requirements thanks to the expertise of its technical design support service. This provides architects and specifiers freedom with an almost infinite range of façade appearance and layout options.

Manufactured in the UK and developed using the highest specification alloys, NVELOPE products and systems are ideal for supporting a wide variety of façade materials.

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