Waterproofing a 116-Bed Care Home, London

Summary

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  The finished basement required an extensive installation.

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  Sump chambers in the floor house the NP400 Pumps.

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  Newton's unique recycling collected all waste plastic.

Hammerson House will be a world-class, 116-bed residential centre for the elderly Jewish Community in Hampstead. Newton Specialist Contractor Cast Contracting Ltd (CCL) were approached during the planning stages to develop a comprehensive waterproofing solution for the extensive basement.

The Project

The multi-million-pound Hammerson House development provides holistic, compassionate respite and end-of-life care in a safe, stimulating environment. It is designed around ‘households’—clusters of bedrooms with supporting facilities on a domestic scale.

Main contractors Bowmer and Kirkland and P+HS Architects approached NSBC Cast Contracting Ltd (CCL) during the planning stages to develop a comprehensive waterproofing solution for the extensive basement.

The Solution

CCL recommended the installation of a Newton CDM water management system to comprehensively waterproof the extensive basement. First, they employed the 8mm Newton 508 membrane to the concrete retaining walls of the basement. The team then installed 50mm thick Fibran XPS 500-C insulation beneath more 508 membrane across the entire concrete slab.
They also installed a Basedrain drainage channel around the perimeter, including inspection ports, to create a fully maintainable system.

The team serves this entire system with a series of complete sump and pump systems, each including primary and backup NP400 pumps, high water level alarms, and battery backup systems.
They control all components using Newton’s advanced Control Panel-Pro to ensure a failsafe system, even during a power outage.

Finally, Newton’s 107F cementitious waterproof membrane was spray applied to the concrete upstands of the lightwells and lift pits in order to complete the continuous watertight solution.

The Result

CCL combined multiple specialist products from Newton to deliver a comprehensive waterproofing solution. The system met British Standards and included a full installation guarantee.