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Catnic at top of the class at new Norwich school

Catnic at top of the class at new Norwich school

Catnic’s steel SSR2 Standing Seam Roofing and Cladding system was specified for a new school building in Norwich.

The system proved fast to install and has created a contemporary, low maintenance roof that offers high thermal performance, impressing the design and construction team.

The new self-contained school building covers a footprint of 204 sqm. It houses two classrooms, a lobby area, unisex and disabled toilets and a plant room.

The single storey, timber-framed building features a smooth, light grey insulation render with contrasting slate grey, timber grain effect cladding panels. Grey aluminium powder coated thermally broken windows and doors also incorporate coloured insulated panels in a striking a letterbox red, linking into the school identity colour palette. The roof completes the building and features Catnic’s SSR2 in a mid grey colour called Merlin (BS18B25).

The roof specification comprised an engineered timber JJI-joist roof construction, acoustic ceiling supported off MF grid with 200mm plenum and 50mm quilt insulation, a vapour control layer, 9mm OBS lining sheet, 300mm cellulose fibre insulation pumped in JJI roof void, 18mm OSB sheathing, breather membrane with SSR2 fixed directly to OSB sheathing.

A cost-effective alternative to traditional copper and zinc standing seam roof systems, the SSR2 system is manufactured to meet all relevant legislation, including load bearing for wind speed in accordance with EN 1991-4 and weather tightness in accordance with BS 5534 Parts 1 and 2. Furthermore, helping to meet requirements for sustainable building solutions – SSR2 is BRE Green Guide Rated ‘A’ and at end of life – the panels are 100% recyclable.

Solar panels were also installed under the principal contractor’s remit, specified to complement onsite energy requirements. The SSR2 system accommodates this requirement easily with the use of a simple fixing bracket that clamps on to the standing seam upstand. This allows the PV panels to be installed without needing to put holes through the roof and keeps the installation process simple.

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