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Armaflex® Duct used for a factory extension project in County Durham

Armaflex® Duct used for a factory extension project in County Durham

Mechanical services insulation for 4,000 sq m factory extension, part of a multi-million pound investment in new production lines at a large manufacturing plant in the North East.

The County Durham facility in the North-East of England is a flagship site for the manufacturing of safety equipment. The site is currently undergoing a programme of investment in new production lines, including a 4,000 sq m extension to the current facility.

Insulation of the extension‘s air handling and HVAC system was undertaken by local contractor Tees Group, who in collaboration with the mechanical services engineers, specified Armacell‘s Armaflex Duct product. The low thermal conductivity value of Armaflex flexible nitrile rubber (0.036) ensures the HVAC system is well insulated against heat losses on the warm air supply, and the closed cell structure of the material provides an integral vapour barrier for protection against condensation on the cold air supply (water vapour diffusion resistance μ factor of 7,000). Armaflex Duct is available in black, or with a foil covering to provide an aesthetic finish. The sheets are available in 1 or 1.5m widths to suit a range of duct sizes.

For the extension project 12m long x 19mm thick sheets were used to insulate approximately 1,000 linear metres of spiral and 250 metres of rectangular ductwork, with the 19mm option calculated to provide a good balance between material cost, energy saving and condensation control. Armaflex is fibre free and the self-adhesive backed version installed for the extension project is easy to install in-situ. The sheets are simply cut to size and positioned in place before the protective backing is removed and pressure applied to adhere in place.

The two ends of the sheet on spiral ducts are sealed together using Armaflex 520 adhesive (non-drip RS850 gel adhesive also suitable) and the adjoining seams between sheets are sealed under compression with the adhesive and covered with silver tape for a neat finish. Application training and a manual for ductwork installations is available on request.

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Armacell

Armacell

As the inventors of flexible foam for equipment insulation and a leading provider of engineered foams, Armacell develops innovative and safe thermal, acoustic and mechanical solutions that create sustainable value for its customers....
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T(0161) 287 7000
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