Basement waterproofing in Houses of Parliament

Basement waterproofing in Houses of Parliament


MacLennan was employed by Shaca to come up with a guaranteed scheme for a new build basement at the houses of parliament, they were engaged to carry out a site survey and to specify the necessary work to provide a guaranteed system.


The MacLennan team designed an external waterproofing system with an internal cavity drain and a polyurea roofing system to guarantee it was waterproofed to a high standard. An 8mm ventilated cavity membrane was installed from floor to ceiling, then a lime inhibitor was applied to the floor area followed by a 20mm membrane and drainage system. The roof deck was coated with MacLennan Polyprufe primer and polyurea, then a drainage membrane was applied on top.


The final outcome ensured a waterproof basement that complies with BS8102 2009 and was guaranteed against water ingress. Benefits: The whole contract was designed and carried out by MacLennan under their insurance cover and PI. The whole system was guaranteed by MacLennan.

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MacLennan Waterproofing

MacLennan Waterproofing

MacLennan have been guaranteeing work for over 30 years with offices in Salisbury & London. They have built up a reputation for supplying an honest and professional service. As an independent company, they can choose the appropriate products to suit...
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 Field Farm, Porton Road, Porton, Salisbury, Wiltshire, SP4 0NF

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