Page 15 - Metal-Matters-issue-10

Extended building life for

Keeping the river flowing corrosive environment

CA Group worked alongside FK Construction in setting out of the carrier system enabled an overall Filon’s chemical resistant Citadel GRP profiled with Filon Products over a number of years and were
the installation of its Prime VII rainscreen system, speedy installation of the rainscreen panels. Trim sheets were specified for this new factory unit in aware that their Citadel sheets can be formulated
incorporating the Cupral Orange aluminium details were used to complement the panels and Widnes, Cheshire to withstand corrosion attack from to provide high levels of resistance to specific
composite material (ACM) box facade on this £220 overcome a robust canvas enhancing the longevity of chemicals used in the manufacturing process housed chemicals.”
million project upgrade at Crossness Sewage the installation’s aesthetics. The simple, systemised within the building.
Treatment Works in London. This treatment works approach of the PRIME VII rainscreen system Filon Citadel sheets are supplied in one of two
is part of a network of interconnecting sewers which utilises panels which are hooked into place and then Building owner Saffil Ltd, part of the global Unifrax double reinforced (DR) weights, or triple reinforced
run parallel to the Thames, diverting the capital’s mechanically locked, resulted in excellent feedback Corporation, manufactures highly engineered (Supasafe). The Filon Citadel DR wall sheets
effluent and is the largest sewage works in Europe from all parties involved. polycrystalline wool products. These specialised provide excellent durability, resistance to the local
serving two million people. materials offer high temperature solutions for a wide environment and wind loads. The Filon Citadel
Work at Crossness is ongoing and future spectrum of applications and markets. Supasafe roof sheets provide optimum levels of
This was the first time that FK Construction had improvements to the treatment works will include a safety and load resistance in the very long term. All of
worked with the Prime VII rainscreen system which is 35 metre high tower/chimney which will be clad in Small quantities of hydrochloric acid generated the Filon Citadel sheeting used is compliant with the
manufactured and supplied by CA Group. With this the same Prime VII rainscreen system installed by FK in their manufacturing process can escape and Building Regulations for fire safety.
in mind the CA specialist rainscreen team worked Construction. condense on interior building surfaces and these can
alongside FK Construction from initial design through have a corrosive effect on many traditional materials. The almost 4,000 square metre roof comprised
to installation to achieve an outstanding finish. When completed these improvements will enable 44 For this reason, Filon Citadel profiled GRP sheets opaque sheets to a light grey internally and externally.
per cent more sewage to be processed and reduce were specified for the project to provide an extended The building also benefits from the inclusion of
The Prime VII Rainscreen system which has full the amount of storm sewage that overflows into the guarantee on the structure. approximately 10 per cent rooflights providing a
Centre for Window & Cladding Technology (CWCT) tidal River Thames after heavy rain which in turn will pleasant naturally lit working area due to the highly
certification was installed with ease. The accurate prevent more homes from being flooded in London. Design and specification of the plant was undertaken diffusing properties of Filon rooflights.
as a fast track project by structural and civil
engineers R&M Bolton Ltd, of Leigh in Lancashire. The 2,000 square metre wall areas were also clad
with light grey opaque sheets and the system was
Richard Bolton, managing director of R&M Bolton, finished with purpose made flashings, louvered
said: “Filon Citadel was the obvious solution for the ventilators and curved eaves sheets providing an
cladding and roofing on this project. We’ve worked elegant and seamless transition from roof to wall.

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