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Cold roll-forming specialist Metsec has supplied 32 long span, lightweight steel trusses, plus zed purlins and 'C' sections to support the roof of a curved riverside development in Chelmsford. The crescent-shaped roof was complicated to design as the hipped ends and valleys were not square, so the trusses and purlins needed to be set out to fit around a radius. The trusses were designed to be light weight, high strength and to have a long span.

This product appeared in Building Products more than 12 months ago. Please contact Metsec directly for further details.

Light gauge galvanised steel zed roof purlins by Metsec have been specified for the Brigg County Primary School project. The company used its MetSPEC 9 building shell design software to identify a solution to support a combination of green 'sedum' roofing with Cambrian Slate. A sleeved system of 262mm and 302mm deep zed purlins, spanning up to 10m and spaced at 1.2m centres, were utilised to support a dead load of 0.82kN/m? for the sedum elements of the roof. Struts were used to offer lateral restraint.

This product appeared in Building Products more than 12 months ago. Please contact Metsec directly for further details.

Lightweight steel lattice joints from Metsec are supporting the 'green' roof of the new Solihull Centre for Inclusive Learning, which will provide facilties for children with special needs. The 2,500m? two-storey building was designed with a SarnaVert green roofing system for aesthetics and to reduce environmental impact. Some 130 lightweight Metsec parallel joists are directly supporting a structural metal deck fixed to the top chord. The remainder of the roof covering is formed from a vapour control layer, thermal insulation, a waterproof membrane plus a soil and sedum based planting.

This product appeared in Building Products more than 12 months ago. Please contact Metsec directly for further details.

Part of a steelwork package for the first of two new style, flat roof Aldi supermarkets in the UK, Metsec has supplied 17m span lightweight lattice trusses. Some 686m of the company?s tapered trusses cover the 500m² virtually flat roofs of the two stores. They had a 1.5 degree taper, were 650mm deep at the shallow end and were supplied in one length to speed up erection times.

This product appeared in Building Products more than 12 months ago. Please contact Metsec directly for further details.

Some 41 tonnes of light gauge steel zed purlins have been supplied by Metsec for the roof of the new OCS stand at the Brit Oval cricket ground in south London. Structural challenges included curvature in three directions and the design meant that each purlin and anti-sag rod were of different lengths. Due to this variation, the anti-sag rods were fabricated on site.

This product appeared in Building Products more than 12 months ago. Please contact Metsec directly for further details.

Lightweight steel lattice joists are providing long span support on a multi-valleyed roof at an RAF training facility in the Midlands. Metsec has supplied 230m of pitched and parallel trusses in a variety of sizes to form a double, pyramid shaped, hip and valley roof over a new two storey block on the airbase. Half of the order was taken up by the seven largest trusses, each 2.6m deep with a 16.5m span. The remaining 114m were various profiles infill lattice trusses. Metsec and Midland Erection, the steelwork fabricator for the project, collaborated over the design and detailing for the roof. Midland Erection devised a Stru- CAD grid and steel frame model of the basic set out of the building. Metsec?s engineers then designed the trusses and the bracings and connection details for the zed purlins.

This product appeared in Building Products more than 12 months ago. Please contact Metsec directly for further details.

Some 200 tonnes of light gauge, galvanised steel zed purlins and side rails have been supplied by Metsec for the ?54m Arena Coventry project. The cold roll-formed sections, ranging from 142mm to 342mm in depth, support the roof and wall cladding. The company?s Zed duct has also been installed on the roof to deter birds.

This product appeared in Building Products more than 12 months ago. Please contact Metsec directly for further details.

Using a cradle support system of Metsec steel lattice beams and inflated tubing has proved a cost effective alternative to replacing deflected flat roofs on a number of schools in the south east. The roof cradle system acts as a supporting sub-grid for the RAAC planks, avoiding the need to re-roof.

This product appeared in Building Products more than 12 months ago. Please contact Metsec directly for further details.