Waterproofing surveys for below ground structures.

As a waterproofing specialist I can advise on all aspects of:

  • Structural Waterproofing
  • Cavity Drainage
  • Tanking
  • BS 8102 Waterproofing Regulations

I also investigate existing waterproofing, which may have failed, to locate the source of the failure and suggest remedial action to remedy the failure.

Typically I investigate:

  • Domestic cellars/basements
  • Underground car parks
  • Below ground retail/storage units
  • Bank vaults
  • Podium decks

On site visits are followed by a detailed report listing faults found and remedial corrective treatment.

Normally one visit is made as part of the investigation, however depending on the size and complexity of the structure several visits may be required.

BS 8102: 2009

The British Standard “Code of practice for the protection of below ground structures against water from the ground” came into effect on 30th November 2009.

The British Standard gives recommendations and provides guidance on methods dealing with and preventing entry of water from surrounding ground into a structure below ground level.

It covers use of:

  1. waterproofing barrier materials applied to the structure,
  2. structurally integral watertight construction; and
  3. drained cavity construction

BS 8102 states that a waterproofing specialist should be included as part of the design team so that an integrated waterproof solution is created. The waterproofing specialist should:

  1. Be suitable experienced;
  2. Be capable of devising solutions that accommodate the various project constraints and needs;
  3. Provide the design team with information and guidance that assists with and influences the design, installation and future maintenance of the waterproofed structure.

All design decisions made by others that might have an impact on the waterproofing design should be brought to the attention of the waterproofing specialist/designer and installing contractors. Final decisions and any recommendations should be approved by the designer.

Traditionally it has been the architect’s role to draw up and recommend the waterproofing design for below ground projects. However the vast majority of architects will readily acknowledge that they do not have the training or expertise to undertake this function. The only reason that they have been doing it is because there are so few people in the industry who are willing to undertake this role.