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Former Railway Workshops and Locomotive Sheds, Lostwithiel, Cornwall

Former Railway Workshops and Locomotive Sheds, Lostwithiel, Cornwall

Client: Wombwell Homes
Type of works: supply of more than 500 sq metres of TLX Gold

TLX Gold has helped maintain the original design of a now Grade II listed building, which started life in Isambard Brunel’s drawing office and is set to become residential and commercial space later this year.

More than 500 sq metres of TLX Gold, the all-in-one multi-foil and breather membrane manufactured by Web Dynamics, has been specified for the project. The renovation will see Wombwell Homes, specialists in the conservation and renovation of Brownfield sites, transform the railway workshops and locomotive sheds in Lostwithiel, Cornwall, into an NHS dental practice and office suites with one and two bedroom flats above.

The product, which has recently achieved ETA (European Technical Approval), has been installed on the external side of the roof under slates to allow all the timbers in the roof to be exposed in the bedrooms. The use of TLX Gold, supplied by Encon of Plymouth, has ensured that there is no alteration to the existing roof line, a restriction on the conversion of the listed building.

At just 33mm thick, TLX Gold is sympathetic to the nature of a project and enables renovation work to be completed with minimal disruption. Many alternatives on the market require modifications to the inside or outside profile of the roof which isn’t always an option.

TLX Gold also controls water vapour and air movement and will allow a building to `breathe’ – delivering a comfortable and energy efficient environment. The product, which is available in a 1.2m width and 10m length, has been designed to reflect heat back into a building to conserve maximum energy and has proved popular for traditionally hard to insulate buildings.

Craig Thomson, Construction Manager at Wombwell Homes said: “We needed to improve the thermal performance of the buildings which originally opened in 1859, but also needed a product that was appropriate to the needs of our installation. Raising the roofline wasn’t a consideration due to the tight building and conservation regulations we needed to meet for a listed building.

“I had read about the use of TLX Gold in a similar project at the Crossness Pumping Station in London and it seemed to fit our requirements as the project faced very similar restrictions. We carried out the installation in January once the original roof covering had been stripped away. It was really easy to install and reduced the amount of insulation thickness we needed to achieve the required U-values.”

TLX Gold has been recognised for its unique design and suitability for projects across the building sector. Now specified for use in many listed buildings and private house refurbishment projects the product is also suitable for use within the social housing and public building sectors and is recognised and accepted by Local Authorities, builders and specifiers.

Manufactured in the UK the TLX range of multi-foil insulation has achieved LABC Registered System status, is fast and simple to install and Web Dynamics’ technical team will provide advice on which insulation construction to use. The company is happy to provide U-value and condensation risk calculations and answer queries concerning specification or installation of any of the TLX range.

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