Service
Pool and water-feature waterproofing.
Waterproofing for rooftop and podium pools, spas and water features — where a constant head of water sits over a occupied space, and a leak isn't just a leak, it's damage to the building below.
A rooftop pool is a body of water held over a building. The membrane beneath it carries a constant hydrostatic head, thermal movement from direct sun, and movement in the structural slab below. When it fails, the water goes down — into the slab, into the reinforcement, and into the apartments or common areas underneath.
AS 4654 sets out the requirements for membranes in external above-ground applications, including rooftop and podium slabs. The work is in the details that the standard governs — substrate preparation and fall, the membrane system selected for continuous water immersion and UV, the bond at every drain and penetration, and the transition between the pool shell and the surrounding slab. We install to these requirements, using specified systems from our product partners.
We take on new rooftop and podium pool waterproofing, and targeted repair of existing installations where the failure is diagnosed and accessible. For active leaks where the source isn't clear, we diagnose first — thermal imaging, moisture mapping, and where useful, flood testing — before specifying a repair.
On site
Pool basin coated, drain set, coping detailed.
What we cover
Rooftop pools
Full membrane systems for new rooftop and podium pools, installed to AS 4654 for continuous immersion.
Spas and plunge pools
Waterproofing for spas, plunge pools and compact water features on rooftops and podiums.
Reflection pools
Shallow reflection pools and water features, with correct detailing at the shell-to-slab junction.
Pool surrounds
Waterproofing of the slab surrounding the pool, where foot traffic, tiling and drainage meet the pool edge.
Drain and penetration detailing
Targeted repair and reinstatement of membrane at drains, skimmer boxes, lights and plumbing penetrations.
Diagnosis of existing leaks
Non-destructive diagnosis of existing pool leaks to locate the failure before any repair is specified.
Installed to AS 4654.
The membrane choice for a rooftop pool depends on the substrate, the pool finish, the expected movement, and the UV exposure — made on the specifics of your job, not a default. We use specified systems from SealBoss, ARDEX, Sika and our other product partners.
If the pool is already leaking and the source isn't clear, we diagnose before we specify. Repairing the wrong spot costs you money and doesn't stop the leak.
Tell us about the project.
Send a few details and we'll come back within one business day. Active leaks — call us directly.