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Top Coat Membranes products
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Vendor:Envirosystems
Enviro 250 NS (Pick-Up Only)
Vendor:EnvirosystemsRegular price $170.00 inc GSTRegular price
Top Coat Membranes buying guide
Why exposed membranes need a topcoat
Most waterproofing membranes are not UV stable. Left exposed, the surface chalks, embrittles and eventually cracks — often within a couple of summers on a north or west-facing deck. A topcoat carries the UV load, adds abrasion resistance for foot traffic, and gives a finish that can be cleaned. It also lets you add slip resistance where the deck is trafficked wet.
Recoat intervals and maintenance
Topcoats are a maintenance item, not a permanent layer. Most systems expect recoating every five to ten years depending on exposure. Building that into a maintenance schedule is far cheaper than replacing a failed membrane and the tiling above it. Hand the owner a written maintenance note at completion stating the expected recoat interval — it protects you as much as it helps them, because a topcoat that was never maintained is not a workmanship failure.
Adding slip resistance
Exposed membrane and topcoat surfaces become slippery when wet, which matters on balconies, around pools and on external stairs. Broadcast an anti-slip aggregate into the wet topcoat and back-roll a further coat over it, or use a pre-filled non-slip grade. Aim the level of texture at the exposure — a heavily textured surface is safer underfoot but noticeably harder to sweep and clean, so pool surrounds and stairs get more texture than a covered balcony.
Colour and heat
Dark topcoats on a west-facing deck reach surface temperatures well above ambient, which increases thermal movement in the membrane below and shortens its life. Lighter colours run considerably cooler and are the better technical choice on exposed horizontal surfaces, even where a darker finish is preferred visually. If a dark colour is specified, confirm the membrane beneath it is rated for the resulting service temperature.
Frequently asked questions
- Can I walk on it?
- Trafficable grades are rated for pedestrian traffic. For anything heavier, or for wheeled loads, check the specific product rating.
- How often should a topcoat be renewed?
- Typically every five to ten years depending on exposure, traffic and colour. Inspect annually for chalking, wear at traffic paths and any cracking.
- Do I need to prepare before recoating?
- Yes — clean thoroughly, remove any chalked material, and abrade if the existing coat is fully cured and glossy. Many systems also require a tie-coat when recoating after several years.
stocked at both jaden services trade counters — fairfield heights and prestons — with australia-wide delivery and trade pricing for regular accounts. Get in touch
