Roof & Rooftop Waterproofing in Sydney
TPO, torch-on and green roof membrane systems for flat roofs, roof decks and podiums, chosen for the roof, the exposure and how it will be used.
Get a Free QuoteCall 0410 495 592The Right System for the Roof
Flat and low pitch roofs rely completely on their membrane. They take full sun, heat, ponding water and building movement, and roof decks and green roofs carry traffic, pavers, soil and plants on top as well.
WSA installs roof membranes on concrete roofs, roof decks, podiums and green roofs across Sydney for builders, strata and homeowners. We look at how the roof drains, what is going on top of it and what it is sitting on, then use the system that suits it, whether that is a welded TPO sheet, a torch-on membrane or a liquid applied system.
Roof Waterproofing Services
TPO Roof Membranes
Single ply TPO sheet with hot air welded seams, suited to large exposed flat roofs.
Torch-On Membranes
Heat applied bitumen membranes with a mineral cap sheet for exposed roofs.
Green Roofs
Root resistant torch-on systems with protection and drainage for planted roofs.
Roof Decks & Podiums
Membranes under tiles, pavers on pedestals, timber decking and planters.
Skylights & Penetrations
Upstands, skylights, vents and plant penetrations detailed into the membrane.
Remedial Roofs
Stripping and replacing failed roof membranes on existing buildings.
Our Roof Membrane Systems
TPO Single Ply Membrane
TPO is a durable single ply sheet laid across the roof with every seam hot air welded, so the laps become one continuous membrane. Its light colour reflects heat, and it handles UV and weather well on large exposed roofs.
Exposed Torch-On Membrane
Torch-on membranes are heat bonded to the roof, usually as a base sheet and a mineral surfaced cap sheet. The mineral surface protects the bitumen from UV, making it a tough, proven system for exposed flat roofs.
Green Roofs
Green roofs need a membrane that roots can’t get through, along with protection and drainage before the growing medium goes on. We install torch-on green roof systems, with the upturns, outlets and skylight upstands fully detailed.
Details We Focus On
Roof leaks usually start at the details. We give these the most time:
- Falls and drainage so water does not sit on the membrane
- Outlets and overflows sealed into the system
- Upturns and terminations at parapets and walls
- Skylights, vents and plant penetrations
- Protection under pavers, planters and green roof build-ups
- Compliance certificate issued
How It Works
Inspect & Quote
We check the roof, falls, drainage and what is going on top, then give you a fixed price.
Preparation
Substrate repaired and prepared, and existing failed membranes removed where needed.
Membrane
Details and penetrations done first, then the membrane system installed.
Certificate
Issued with all relevant information for your certifier and your records.
Frequently Asked Questions
It depends on whether the roof is exposed or covered, whether it will be walked on or planted, what the substrate is and how the roof drains. TPO, torch-on and liquid membranes all have their place, and we will recommend the system that suits your roof.
TPO is a single ply sheet membrane with seams that are hot air welded together. It is light coloured, which reflects heat, and is suited to large exposed flat roofs.
Yes. Green roofs need a membrane that resists root penetration, plus protection and drainage before the growing medium goes on. We install torch-on systems designed for planted roofs.
Sometimes a localised repair is enough, but if the membrane has reached the end of its life a replacement is the lasting fix. Our leak detection and defect reports will show which it is.
Yes. We work on residential, strata and commercial rooftops across Sydney.
Need a Roof Waterproofed?
Send us a few details below and we will get back to you. Builders can email plans to sammy@wsaustralia.com.au or call 0410 495 592.
