Waterproofing Essentials - Internal wet areas

INTERNAL WET AREAS

Hosted at The Waterstop Shop

Date: 27 February
Time: 7:00 – 10:00 AM
Location: The Waterstop Shop
Delivery: Face-to-face

WATERPROOFING ESSENTIALS – INTERNAL WET AREAS

This workshop provides a practical overview of internal wet-area waterproofing, focused on correct preparation, detailing, application, and inspection in accordance with the National Construction Code (NCC) and AS3740:2021 – Waterproofing of Domestic Wet Areas.

The session uses real site photos, videos, and examples of compliant and non-compliant work to show how waterproofing failures occur and how they can be prevented.

WORKSHOP CONTENT

Waterproofing Fundamentals

• Why waterproofing matters in residential construction
• Common wet-area failures and defect drivers
• The cost and risk of non-compliance

NCC & AS3740 Requirements

• How the NCC regulates wet areas
• Performance Requirements and Deemed-to-Satisfy pathways
• Key AS3740 clauses explained in practical terms
• How the NCC and AS3740 work together

Housing Provisions vs AS3740

• How the NCC Housing Provisions reference AS3740
• The difference between minimum Code compliance and Standard-based detailing
• How design decisions affect waterproofing outcomes
• Common gaps between drawings, specifications, and site execution
• Where builders and trades carry compliance risk when details are unclear

Wet Areas & Waterproofing Extents

• What constitutes a wet area under the NCC
• Waterproofing requirements for bathrooms, showers, laundries, sanitary compartments, and combined spaces
• Enclosed vs unenclosed showers and how this affects detailing

Practical Detailing

• Correct installation of:
  • Waterstops
  • Bond breakers and fillets
  • Junctions and transitions
  • Screeds and falls
  • Penetrations and drainage connections
• Visual examples of compliant and non-compliant work

Membranes & Application

• Liquid and sheet membrane systems
• Substrate preparation and moisture considerations
• Primers, surface preparation, and smoothing
• Measuring wet film and dry film thickness
• Common application failures

Inspection & Quality Checks

• What must be checked before tiling or finishes
• Membrane continuity and thickness checks
• Identifying high-risk defects

LEARNING OUTCOMES

Participants will be able to:

• Identify wet areas and applicable waterproofing requirements
• Apply relevant NCC and AS3740 provisions
• Recognise compliant and non-compliant installations
• Understand correct substrate preparation and membrane application
• Inspect waterproofing systems before finishes are installed

WHO SHOULD ATTEND

• Builders and site supervisors
• Waterproofers, tilers, plumbers, and carpenters
• Designers and building designers
• Building surveyors and certifiers
• Industry professionals involved in waterproofing design, installation, inspection, or sign-off

DELIVERY FORMAT

• Real site photos and video examples
• Practical explanations of NCC and AS3740
• Detailing demonstrations
• Open discussion and Q&A

TRAINER

Byron Landeryou
Founder & Managing Director – CompliBuild & Waterproof Awareness

25+ years in construction as a tiler and waterproofing subcontractor
Qualified Trainer & Assessor
3,500+ industry professionals trained nationwide
Victorian Lead & Committee Member – Australian Institute of Waterproofing
Course designer for Master Builders Association
Former trade school educator and curriculum developer

Byron specialises in bridging design intent, practical construction, and regulatory compliance.

Purchase your ticket here