Keeping Water Out- Basements, Bathrooms and Decks

This seminar will cover the legislative requirements and basic principles for the effective design, detailing and installation of waterproofing to basements, bathrooms and decks.


Basements, bathrooms (particularly tiled showers) and decks are known areas of higher risk in terms of potential issues related to water entry and/or migration to adjacent spaces.

This 21 centre seminar will cover the principles of:

  • why we need to waterproof effectively
  • the requirements of the Building Code, Acceptable Solutions and standards
  • waterproofing material options
  • waterproofing extent
  • key design parameters-the definition of wet areas and splash zones for bathrooms, slopes to bathroom floors and decks
  • key waterproofing system application requirements such as curing
  • key aspects of detailing
  • drainage-behind walls, external for decks and internal for bathrooms
  • inspection and maintenance
  • for bathrooms– specific issues around freestanding baths, preformed showers, level-entry showers, finishes to walls.


This seminar is a must if you are a designer, architect, builder, BCA, roofer, waterproofer, tiler, building surveyor or house inspector.


Greg Burn - NZCD (Arch), Dip Bus (Marketing) - Structure Ltd

Des Molloy - Building Consultant

Further information








For assistance, please contact us on 04 237 1170