Exciting News About Waterproofing

May 29th, 2023

Water damage usually occurs from three main sources: internal building sources (plumbing, fire suppression, drains and gutters), external sources (rain, doors, window openings and groundwater) and construction defects. One of the most effective ways to prevent water damage in the construction phase of building is the use of suitable waterproofing materials that are expertly applied to the areas that require them.

CSIRO has listened to the concerns of the building industry and consulted widely with the major stakeholders over the past 12 months.

We are pleased to announce that the Australian Paint & Products Accreditation Scheme (APAS) has introduced a series of Waterproofing specifications to address currently unregulated waterproofing materials and, in conjunction with its sister program, the Paint & Product Certified Contractor Program (PCCP), has developed new classes under which PCCP accredits applicant contractors.

The specifications and documents are:

Specification No. Title: Based on:   Document Link:
      AP-S4000 Waterproofing Membranes for above ground use (External) AS 4654.1 Waterproofing membranes for external above-ground use – Part 1: Materials AP-S4000
AP-S4001 Pliable Building Membranes – Vapour / Water Control AS/NZS 4200.1 Pliable building membranes and underlays – Part 1: Materials AP-S4001
AP-S4002 Damp-proof courses and flashings AS/NZS 2904 Damp-proof courses and flashings


AP-S4003 Waterproofing Membranes for wet areas (Buildings) AS/NZS 4858 Wet area membranes AP-S4003
PP-D007 Categories and Classes PP-D007
PP-D051 Application of Waterproofing Coatings to Domestic, Residential and Commercial Buildings. PP-D051
PP-F001 Initial Application Form PP-F001
PP-F025 Initial Preaudit Questionnaire – Class 40-46 PP-F025

A copy of these specifications can be obtained by clicking the above link or directly from the Specification Section of the APAS website and the Documents – Painting Contractor Certification Program (csiro.au) on the PCCP website.