RESOURCES
TYPE C WATERPROOFING SYSTEMS
A Type C system is defined as a below ground, maintainable waterproofing system, comprising of membranes, drainage and pumping systems where necessary.
As part of the BS8102:2009, it is considered ‘accepted’ that water has the potential to enter a building. The Type C membrane creates an internal cavity that allows the water to depressurise, subsequently allowing appropriate management of the water.
Once the water is collected it is then discharged from the property via natural stormwater or sump pump systems.
Type C systems are typically applied as:
- Internal below ground walls, floors and sometimes vaulted ceilings
- Above ground masonry walls where condensation and moisture ingress can be an issue
- Used in conjunction with both Type A and Type B systems to create a complete waterproofing solution
TYPE C WATERPROOFING CASE STUDY
‘Palm Springs’ Luxury Residence, Sanctuary Cove, QLD
This custom built, luxury home was designed with a full habitable space basement which included a media room, gym and cellar. It was originally constructed with an external sheet waterproofing membrane which was compromised during the back-filling process, resulting in substantial water ingress into the basement, even during rain free periods.
Dryspace Solutions specified and installed a Type C, Cavity Drain membrane system to both the walls and the floors, draining into the two sump systems that were in place.
The cavity drain systems handle both the free water ingress, moisture vapour and condensation to produce a totally dry, internal habitable space.
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About Us
Delivering Peace of Mind, Every Time! We deliver long-term waterproofing solutions designed to keep below-ground spaces dry well into the future. Every project begins with a clear understanding of the conditions affecting your property, allowing us to identify the true cause of water ingress—not just the symptoms.
Whether protecting your home, improving the usability of your space, or addressing ongoing moisture issues, Dryspace provides solutions you can rely on.
What sets us apart is our commitment to a considered, methodical approach. Drawing on decades of industry experience, we design tailored systems and take full responsibility for every stage of the process—from initial assessment and technical design through to installation—ensuring consistent quality and reliable outcomes.
Here’s what one happy customer had to say:
“They had the right solution to fix our basement we’d been struggling with for years. They used new technologies to move the water away and keep it away, instead of just pushing it elsewhere to cause another problem. My only complaint is that I didn’t use them earlier.”
