These moulds are used as a border between different wall finishes or just to provide a break on a large wall surface. They can either be a flat finish without any pattern or can be profile cut to give a little more elegance.
Exterior banding and dado moulds are elevated architectural features installed horizontally or vertically across a building’s exterior walls. Historically used to conceal structural joins between floor levels or transition between different wall cladding finishes, modern exterior banding serves a vital aesthetic purpose. It breaks up vast, plain rendered walls, creates dramatic light and shadow lines, and gives residential homes and commercial developments a refined, high-end architectural finish.
At Thermatech, our architectural banding and dado moulds are manufactured using high-density expanded polystyrene (EPS), finished with a tough, weather-resistant exterior coating. While traditional exterior mouldings were crafted from heavy concrete, sand-and-cement plaster, or timber, modern architectural trends have shifted heavily toward lightweight polystyrene profiles due to their unmatched durability, structural efficiency, and ease of installation.
Upgrading your building’s exterior with lightweight EPS profiles provides distinct structural and financial advantages over old-school masonry trims:
Zero Structural Load: Heavy concrete mouldings add significant dead weight to a building’s frame and foundation, often requiring extra steel support or concrete fixings. Polystyrene profiles are feather-light, adding zero structural stress to timber framing, brickwork, or lightweight wall cladding.
Rot and Weather Resistance: Timber banding expands, shrinks, cracks, and eventually rots when exposed to rain and sun. Our rendered polystyrene moulds are completely waterproof, decay-proof, and designed specifically to endure Australia’s tough weather conditions without cracking or warping.
Thermal Efficiency: Because expanded polystyrene is a high-performance insulator, installing exterior banding around your home’s envelope helps bridge thermal gaps, contributing to better energy efficiency and temperature regulation inside the building.
Unlimited Design Flexibility: Whether you need a sleek, flat modern border to separate a lower brick facade from upper cladding, or a multi-stepped classical profile to give a grand entry presence, polystyrene can be custom-cut to match any custom detail or heritage profile.
One of the largest hidden costs in exterior rendering and building facade work is labor. Traditional masonry mouldings require multi-person crews, heavy lifting gear, and complex structural anchoring.
By contrast, Thermatech polystyrene banding profiles can be fitted quickly by a single installer:
Easy Handling: Long lengths can easily be carried, maneuvered, and positioned up ladders or scaffolding without specialized lifting equipment.
Simple Cutting: Profiles can be cut cleanly to size directly on site using standard handsaws or hot-wire cutters to create seamless 45-degree mitred corners.
Adhesive Fixing: Mouldings are secured directly to rendered brick, AAC panels, or exterior cladding using specialized masonry construction adhesive, with minimal mechanical fasteners required.
Ready for Paint: Once installed, joints are patched with a rendered coating, leaving a smooth, uniform surface that readily accepts any exterior acrylic paint.
Whether you are a commercial builder managing an apartment complex, a renderer finishing a modern new build, or a homeowner upgrading your facade to boost street appeal, Thermatech delivers high-density architectural mouldings directly to sites across Australia. Every shipment is securely packaged to ensure your profiles arrive straight, damage-free, and ready to install immediately.
Elevate your next project with Australia’s trusted lightweight moulding specialists. Contact Thermatech today to request a catalogue or get an obligation-free quote on custom banding profiles.
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