Combined basement waterproofing, Houses of Parliament

Challenge

Newton Waterproofing returned to the Houses of Parliament in London to provide a waterproofing solution for a large new-build basement situated directly next to the River Thames.

This complex project required the design and installation of an external waterproofing system, an internal cavity drain system, and a polyurea roofing system.

Newton Specialist Basement Contractor, MacLennanUK, worked from detailed plans and drawings to specify a guaranteed waterproofing solution. With the solution in place, they came to Newton, whose product range was perfectly suited to the requirements.

Solution

Externally, Newton’s innovative ‘Type A’ 403 HydroBond membrane was applied to ensure the necessary waterproofing around the basement.

Internally, Newton 508 and Newton 520 membranes were applied from floor to ceiling as part of Newton’s complete System 500 cavity drainage solution.

With the finished structure in place, the waterproofing was finally completed by the application of a polyurea coating and a further drainage membrane to the roof deck of the basement.

Outcome

The structure is completely waterproof and compliant with BS 8102:2009. After utilising multiple Newton Systems, MacLennanUK also provided an insurance-backed guarantee for the work undertaken, confident in the level of protection against water ingress.

“With such a long-standing and productive relationship between ourselves and Newton, they were the obvious choice to go to when we were planning this project of combined products and solutions. On top of that, it was a real privilege to work on a project concerned with maintaining a building that has such history and significance in the UK” – Ian MacLennan, MacLennanUK

* Images are indicative of work carried out