Trafficable systems
Rooftop & terrace membranes
Flat and low-fall roofs live or die by their membrane. Ultraviolet exposure, ponding, foot traffic to plant and antennas, and movement at parapets all age a roof system toward failure, and by the time internal damage appears, water has usually been tracking through the slab for a long while. Remediation weighs overlay against full replacement, addresses falls and drainage capacity, and reinstates a system whose details at parapets, penetrations and box gutters match the exposure.
Scope
What this covers
Assessment of the existing membrane, falls, drainage and parapet details
Full replacement or engineered overlay, whichever the substrate condition genuinely supports
Sheet membrane or liquid-applied membrane systems selected for the roof's traffic and exposure
Parapet capping, penetration and plant-mount detailing
Trafficable finishes and walkway provisions where roof access is routine
Timing
When it's needed
Blistering, crazing or exposed reinforcement fabric in the existing membrane, ceiling stains in top-floor rooms after rain, ponding that lingers for days, and membranes reaching the end of their service life ahead of solar or plant installations that will put trades on the roof.
Water tracking through a building can reach electrical fittings and weaken ceilings. Keep clear of sagging or stained plasterboard, never touch light fittings or switches that are damp, and isolate the affected circuit and seek help promptly where water and electricity may have met.
Quote variables
What shapes the scope
Roof area and whether existing falls achieve drainage or need screed correction
Number of penetrations, plant mounts and details each requiring individual treatment
Overlay feasibility versus strip-and-replace, decided by adhesion and moisture testing
Height access and weather windows for membrane curing
Waterproofing is a licensed trade in NSW, and remedial building work on apartment buildings additionally engages the design and building practitioner regime, under which designs are declared and practitioners registered. Whoever performs your remediation, ask for their contractor licence and any applicable practitioner registration, and verify both on the NSW online registers before work is engaged.
Remediation scopes
Start your quote
Send through the job details and we'll connect you with a licensed provider who can quote this work.
If this is an emergency or anyone is at immediate risk, contact the relevant emergency service or your network or utility operator directly instead of using this form.