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Basement waterproofing of Grade II Listed building in Gloucester
by Protectahome
Pillar and Lucy House is a Grade II Listed building set within the Gloucester Quays development in the historical city of Gloucester. Part of a huge 400m redevelopment scheme, Gloucester Quays occupies 25 hectares of industrial land on the canal corridor. Pillar and Lucy House, a former warehouse, is located next to the canal and required a robust basement waterproofing installation to provide dry habitable accommodation for commercial use.

A quality basement waterproofing system was designed and installed to meet the specific site requirements and comply with the developer's programme of work. A drained cavity drain membrane method of waterproofing was selected, giving particular consideration to the impact on the structure and the reversibility of the process.

A combination of 8mm and 20mm cavity drain membranes were applied to the walls and floors. The membrane installation was supported with a series of perimeter drainage channels linked back to specially formed sump chambers. Each sump chamber contained two high capacity sump pumps controlled by a sophisticated electronic panel with battery back up. The panel allowed for sequential pumping, duty assist, burst testing and detailed monitoring of the pumps. It also incorporated an audible high water alarm as well as a speech and text dialler. Directly employed staff completed the work and the client benefitted from a long term guarantee and guarantee protection insurance. The design was also covered by professional indemnity insurance.
This case study has been submitted by a member and the British Structural Waterproofing Association accepts no responsibility for its content.

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