Rooftop terraces and decks over living areas combine the challenges of a roof with the demands of an outdoor room. Furniture, planters, foot traffic and hidden drainage all have to work with the membrane below.
We design and install terrace and deck waterproofing systems for homes, townhouses and apartment podiums throughout Sydney.
Signs you need deck & terrace waterproofing
- Leaks into rooms below the terrace after rain
- Tiles or pavers that rock, crack or sink
- Water that pools in corners or around planters
- Soft or rotting timber deck joists
- Stains running down walls from the terrace edge
- Blocked outlets hidden under pavers or decking
Waterproofing under every type of finish
- Tiled terraces — bonded membrane under a screed and tiles, with movement joints
- Pedestal paver systems — membrane with protection layer and adjustable pedestals for easy drainage and access
- Timber or composite decking — membrane over the slab with drainage beneath the deck frame
- Trafficable coatings — decorative, slip-resistant membranes that are the finished surface
Planning for drainage
Outlets under pavers and decks must remain accessible for cleaning. We plan outlet locations, falls and overflow provisions so water always has a path off the terrace, even in a heavy Sydney storm.
Planters and built-in features
Planter boxes, BBQ benches and screens are common sources of leaks when they are built on top of a membrane. We detail these features so that the membrane continues beneath or around them without being punctured.
Our deck & terrace waterproofing process
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1
Assessment
We review the terrace, finish, drainage and any built-in features.
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2
Preparation & falls
Slabs are repaired and screeded to fall where required.
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3
Membrane & reinforcement
A suitable external membrane is applied with reinforcement at junctions and outlets.
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4
Protection layer
Protection boards or screeds protect the membrane from the finish above.
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5
Test & finish
Flood testing before tiles, pavers or decking are installed.
Why choose us for deck & terrace waterproofing
Solutions for tiles, pavers, decking and coatings
Accessible outlet design
Planter and feature detailing
External membranes for full sun exposure
Suitable for homes and apartment podiums
Written warranty
