Residential carpark polymer anti-flood refurb Belsize Park NW3

The door area was fitted with drainage channels to help floodproof the carpark
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The wall and floor junctions were fully waterproofed, creating a jointless and seamless membrane
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Junction waterproofing was continued as necessary around the carpark
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This rendered the previousy flooded space snug and dry
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Carpark expansion joints and pillar bases were also waterproofed
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The grey shows the depth of waterproofing in the various zones
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Doorways were also seamlessly floodproofed as part of the whole, with no need for separate waterproofing
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Waterproofing was extended into the created drainage channels (see also pic 1)
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Grating was installed over the channels and sills replaced, with everything now contained
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Final coats were applied to upright surfaces
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As well as to junctions
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The finished space
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This residential car park in Belsize Park, Hampstead Heath, Camden (NW3) suffered a serious flood from the upper main road due to on-street rainwater drains being blocked solid from lack of maintenance. Although not historically a flood prone area, heavy rain and flooding wrought by climate change resulted in two houses and three apartments being flooded to a depth of one metre. This led residents to take preventive measures to decrease their reliance on external drain maintenance.

Our task was to waterproof the walls and floor junction, channel drain and car park expansion joints, as well as to securely bond and waterproof the flood doors that had been newly fitted to the houses and apartments (they had also had sewer no-return valves installed).

All told, these preventive works should stop any future flood damage and reduce the astronomical new insurance premiums and excess.


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