Balcony Waterproofing – Melbourne

October 21, 2016

Waterproofing method for balconies require best practice & quality products  

Balconies are often designed over habitable living spaces and water leaks can be catastrophic.

Balcony Waterproofing Membranes That Work 

Why do balconies leak?

  • Obviously waterproofing membrane failures are caused by a variety of reasons however recent projects have highlighted an interesting cause.
  • Construction methods are always changing and adapting.
  • Balconies will require adequate fall in the substrate to allow the water to run off to an exit or drainage point/s.
  • Many waterproofing membranes are not designed to hold” water or sustain ponding water as it is better described.
  • The waterproofing membrane which, given time and  with thermal expansion / contraction - will cause break down or joint failure with subsequent balcony leaks.
melbourne balcony waterproofing membrane

I have been in the construction game for over 30 years, either as a Registered Building Practitioner myself & owner of Findlay & Evans Waterproofing.

I have recently noticed, either for reasons of design and/or cost considerations, subtle construction changes which have a direct impact on the success or otherwise of waterproofing membranes.

Many Balcony Floors Are Currently Being Constructed With Minimal Falls  

Particularly Evidenced In Multi-Level Apartments.


Balcony Design Affects Waterproofing

  • Balcony design has a significant effect on the choice of waterproofing product, the application of membranes and tile adhesives used.
  • The membrane must be capable of “ponding water” and the application must proceed with meticulous preparation to ensure detailing is installed correctly.
sheet waterproofing membrane
sheet waterproofing membrane
  • Unfortunately these issues are not always taken into consideration when contractors/specifiers/designers are considering waterproofing methodology for contempory balconies designed with minimal fall.

Balcony Design & Australian Standards 

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Best Waterproofing System For Balconies - Liquid Rubber

  • Liquid Rubber is spray applied seamlessly onto concrete, steel, metal
  • Flexible and elastic so can move with substrate.
  • UV resistant so does not crack or degrade with UV light.
  • Unlike most coatings, can be applied on damp surfaces
commercial balcony waterproofing Melbourne
  • Installation is quick and cost effective.
  • Suitable for internal and external areas.
  • A liquid waterproof coating is a tough,chemical and UV resistant membrane.
melbourne balcony waterproofing membrane

Liquid Rubber Waterproofing Membrane

Liquid Rubber is our waterproofing product  of choice for balconies and above ground waterproofing.
Liquid Rubber Waterproofing

Commercial & Industrial Waterproofing Projects

  Experienced  & Certified Waterproofers in Melbourne 

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