Waterproofing of basements and other below ground structures

5.4.2Provision of information

Designs and specifications shall be produced in a clearly understandable format, include all relevant information and be distributed to all appropriate personnel.

Design and specification information should be issued to site supervisors, relevant specialist subcontractors and/or suppliers and include the following information:

  • A full set of current drawings.
  • Details of joints, junctions and service penetrations.
  • The manufacturer’s information, including relevant parts of the system design manual.
  • An installation method statement detailing the sequence of works.
  • A ground condition report.
  • Third-party certifications.
  • Details of the waterproofing design specialist.

Design and specification information should be provided to NHBC at least eight weeks in advance of the works starting on site, in accordance with NHBC Rules.