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Keeping Listed vaults safe from water damage in Central London

Keeping Listed vaults safe from water damage in Central London

Newton Specialist Contractors, Stonehouse were called upon to waterproof four Grade II Listed underground vaults in Central London. The work was done for multi-national service provider KPMG in order to turn the vaults into a completely dry commercial space.

The structures are each over 4 metres in height, and form part of an impressive below-ground infrastructure network. Stonehouse were asked to waterproof four of these impressive vaults for the multinational service provider KPMG, in order to turn them into useful commercial spaces.

When waterproofing historic vaults such as these, the Newton CDM System provides the ideal solution as it is maintainable, requires minimal fixings and therefore avoids damaging the structure. Crucially, it is deemed reversible, should the structure need to be returned to its original condition in future.

As an experienced contractor, Stonehouse proceeded with an expert installation of a full CDM System to the tricky vaults, including:
• 508 Mesh membrane to the walls, for a direct plaster finish
• 508 membrane and Fibran XPS 500-C insulation boards to the floor
• Basedrain channels to direct any captured water towards two Titan-Pro sump chambers, each containing two NP400 pumps
• Victron Inverter and a NorthStar battery for reliable back-up power

Stonehouse completed an extremely complex and detailed cavity drain installation with precision, resulting in an exceptionally neat waterproofing system.

“In over 30 years in the waterproofing industry this was one of the most complex and physically challenging projects I have been involved with. However, our installation team rose to the challenge and produced a first-class installation of the high-quality Newton products with pinpoint accuracy".
Richard Allen CSRT CSSW, Senior Surveyor – Stonehouse

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Newton Waterproofing Systems (John Newton & Company)

Newton Waterproofing Systems (John Newton & Company)

Newton Waterproofing Systems – Complete Basement and Structural Waterproofing Solutions For New And Existing Buildings

Newton Waterproofing Systems (a trading name of John Newton & Co Ltd), Est 1848, is the UK’s leading independent supplier...
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