Z-Led helps conserve historic building

A Grade II listed Victorian manor is being protected against future vandalism and conserved for posterity with help from an innovative material from Z-Led Ltd.

Castle Grove, originally built in 1834, is today home to the 15 lodges of the Freemasons, who use an 80 years-old two-storey extension to the main hall, and a conference and wedding venue, but has in the past year been subjected to attacks in which the lead had been twice stolen from the roof. To foil the thieves, and protect the building, Z-Led’s Aluflash lead flashing alternative has now been used to replace the stolen lead on the roof and in the valleys and gutters- with the approval of the local conservation officer.

Aluflash uses a combination of corrosion-resistant aluminium with a solvent lacquer coloured surface and self-adhesive butyl backing to create a material that provides a viable alternative to traditional, heavy lead that does not oxidise.

The majority of the lead replacement at Castle Grove was carried out using the embossed version of Aluflash, with the detailing in the valleys and gutters being completed using cross-corrugated Aluflash, specifically designed for use where the flashing has to be moulded over and around complex shapes, as the cross-corrugation enables the material to be easily formed through more than one plane simultaneously.

Architect for the refurbishment, David A Millard, of Millard Design Partnership, explained, “We wanted a material that was tough and looked like lead, but had to be sure whatever we used would comply the stringent requirements of work to a listed building. The local conservation officer accepted Aluflash, as there would be minimum impact on the building’s character.

“Added benefits to us were the material’s ability to accommodate the various conditions on the roof, and that it would require no major maintenance for some years to come.”

Z-Led’s AluFlash is unaffected by temperature, can be laid effectively in hot or cold conditions and is compatible with all common roof materials- concrete, clay, slate and metal. The material is supplied in manageable 5m rolls, in widths from 150mm- 600mm in 50mm increments, minimising wastage. It does not require specialist tools or skills to install reducing time spent cutting to fit. Aluflash is also the only material of its type to carry an AA fire rating, enabling unrestricted use regardless of the proximity of surrounding buildings.

Aluflash is just part of Z-Led’s comprehensive range of materials to defend buildings against damp and gas penetration, and optimise fire protection. Part of the Building Product Design Group, Z-Led specialises in developing innovative yet practical solutions to meet changing demands in its specific markets.

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