In the world of waterproofing contracts, substrate acceptance clauses are often an overlooked detail, but their relevance to liability cannot be overstated. A drain point underneath a planter box wall, as depicted in the photo accompanying this discussion, is an example of an unacceptable condition for applying a waterproofing system. Competent waterproofing professionals recognise this and understand the significant implications of applying a waterproofing membrane to an uns

One of the typical areas of concern that I come across regularly on site is, without a doubt, membrane application in conjunction with sealants. To explain the applications, this is regarding Class III bond breaker/fillet joints at: • Floor-to-wall or wall-to-wall junctions • Expansion joint details • Window threshold membranes requiring a joint sealant from the window to the membrane; and • Membrane termination details; just to provide examples. People regularly say, ‘ju

At this point in time, it is relatively common knowledge in our construction industry that a waterproofing system should be applied to a substrate with falls to drains in order to achieve suitable performance and lifespan of the system. This close connection between waterproofing, water-shedding and performance outcomes is appropriately explained in the TAFE NSW online course ‘Waterproofing Design Principles’ released this year. However, the question “but what is the minim