Melbourne’s climate throws everything at a facade – summer heat, winter rain, UV exposure, and temperature swings that test even the best materials. Choosing the right exterior render systems in Melbourne isn’t just about aesthetics; it’s about long-term performance in conditions that don’t forgive shortcuts.
Whether you’re a builder, architect, or homeowner, understanding your options is the first step to a facade that looks good and lasts.
What Makes a Good Exterior Render System?
Not all render systems are created equal. A quality exterior system should deliver:
Crack resistance – Melbourne’s temperature variations cause substrates to expand and contract. Rigid renders crack; flexible polymer-based systems move with the substrate.
Weather protection – The render needs to repel water while allowing moisture vapour to escape from within the wall. Get this wrong, and you’re trapping moisture where it causes damage.
UV stability – Colour fade is a common complaint with cheaper renders. Quality systems use UV-stable pigments that hold their colour for years, not months.
Substrate compatibility – Brick, block, cement sheet, AAC panels, and cladding boards all behave differently. The render system must be matched to the substrate.
Compliance – Depending on the project, you may need non-combustible renders (AS 1530.1) or systems with specific certifications like CodeMark.
Render System Options for Melbourne Projects
Melbourne builders have access to a strong range of Australian-made render systems. Two brands dominate the professional market:
Unitex – Australian owned and manufactured for over 40 years. Unitex offers a complete range including the Base Board lightweight cladding system, acrylic base coat renders, and an extensive selection of textures and finishes. Their non-combustible render range is certified to AS 1530.1, and the Base Board system holds CodeMark certification.
Sto – A global facade specialist with a strong Australian presence. Sto’s render systems are BRANZ Appraised and engineered for specific substrates, from concrete block to AAC panels. Their StoArmat base coat delivers up to 50 joules of impact resistance, and the Stolit finishing renders offer premium texture and colour options.
Both brands offer technical support, detailed specifications, and warranty-backed systems when installed correctly.
Matching Systems to Melbourne Substrates
Different substrates need different approaches:
|
Substrate |
Recommended Systems |
|
Brick (new or existing) |
Unitex Redi-Render, Sto render for brick construction |
|
Concrete block |
Unitex Polymer Render, Sto concrete block systems |
|
Fibre cement sheet |
Unitex HiLite Render, Sto cement sheet systems |
|
AAC panels (Hebel) |
Unitex Polymer Render, Sto AAC panel systems |
|
Lightweight cladding |
Unitex Base Board system, Sto facade systems |
If you’re unsure which system suits your project, both Unitex and Sto offer technical consultation to help you specify correctly.
Where to Source Exterior Render Systems in Melbourne
Melbourne is well-served by stockists and trade outlets for both major brands:
Unitex Render Warehouse (URW) Oakleigh 1346 North Road, Oakleigh VIC 3167 Phone: 1800 RENDER (1800 736 337)
Unitex Head Office & Warehouse 96 Prosperity Way, Dandenong South VIC 3175 Phone: (03) 9768 4900
Sto Australia Head Office 96 Prosperity Way, Dandenong South VIC 3175 Phone: (03) 9768 4900
Plus a network of independent stockists across metropolitan Melbourne.
Get Expert Advice
Choosing the right render system can feel overwhelming, but you don’t have to figure it out alone. Both Unitex and Sto have technical teams who can advise on product selection, system specifications, and application methods.
Contact Unitex | Contact Sto Australia
Or visit Render.com.au for general enquiries and guidance.