Waterproofing listed riverside basements in Hammersmith

Waterproofing listed riverside basements in Hammersmith

A multi-million pound listed property on the Thames was being completely refurbished and extended to provide a large modern property, yet retain the features of the original design. As a large section of the project was below ground level and metres from the River Thames, a robust and reliable waterproofing approach was essential. Newton Specialist Basement Contractor Wing Waterproofing were commissioned to undertake the project.

The project had a series of existing vaulted arches and brick walls to the front of the property which were underpinned to create the extra living space required. To the rear of the property a very large RC concrete box was cast to provide a new subterranean living space, coupled with a large swimming pool. Wing Waterproofing used Newton 101F as a cementitious Type A barrier system across all underpinned sections to provide a resistance to water coming through the dry pack elements.

New-build joints in the RC box were protected by Newton 303 PolyProof water bars incased in the new shuttered box. In all the vaulted areas. Newton 508 membrane was installed and batten hung off the plugs. Any water would be diverted to the Newton Basedrain which was fitted around the perimeter of the entire structure. Prior to the membrane system being installed a new RC slab was installed throughout both elements of construction.

The engineered slab had concrete sumps formed within the structure as a means of capturing the water that entered the system and to be removed via mechanical means. Newton 106 Lime Inhibitor was used on the slab, 50mm of closed cell insulation was installed as a spacer on the slab and the Newton 508 was installed with a 65 screed with underfloor heating to finish.

Both new-build and existing building elements were waterproofed to a Grade 3 habitable environment in accordance with BS8102:2009.

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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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