Opening Roof Windows
VELUX Roof Windows
Bring natural light, ventilation, and architectural detail into your home with VELUX Opening Roof Windows. Designed to transform attic rooms, lofts, studios, and upper-storey living spaces, these premium roof windows deliver fresh air, energy efficiency, and a brighter, more comfortable interior. Whether you’re renovating an existing roof space or building new, VELUX roof windows provide a practical and visually striking way to enhance liveability. Blacktown Building Supplies stocks the full range of VELUX opening windows in multiple sizes, styles, and opening mechanisms to suit all project types.
Why Builders Choose VELUX Opening Roof Windows
VELUX roof windows are engineered for durability, weather protection, and effortless operation. Every unit is constructed to meet strict Australian standards for performance and energy efficiency, making them a trusted choice for builders, architects, and homeowners.
- High-performance glazing delivers superior insulation, UV protection, and year-round thermal comfort
- Dual-action and centre-pivot mechanisms offer flexible ventilation control
- Built-in flashings and integrated drainage systems provide reliable weatherproofing
- Available in multiple standard sizes for easy specification and installation
- Roof-pitch compatibility suitable for a wide range of home designs
- Designed for long-term durability with low maintenance requirements
Whether you prefer the practicality of centre-pivot windows or the enhanced airflow of dual-action openings, VELUX windows provide smooth, reliable operation and outstanding daylight performance.
Types of VELUX Roof Windows We Stock
Our range includes all popular dimensions and opening types to suit different room layouts and roof pitches:
- Centre-Pivot Roof Windows (GGL Series): Ideal for rooms where furniture sits beneath the window. The top-control operation allows easy opening, closing, and ventilation while maximising interior space.
- Dual-Action Roof Windows (GPL Series): Designed for superior airflow, these windows open from the top as an awning and also pivot from the centre for cleaning and maximum ventilation.
- Multiple Sizes Available: From compact 550 x 780mm units through to larger 1140 x 1180mm windows, our range supports everything from small loft conversions to large architectural designs.
All windows come with energy-efficient glazing and integrated sealing systems to ensure optimal performance in Australian conditions.
Where VELUX Opening Roof Windows Are Used
Opening roof windows are a versatile solution for adding ventilation, daylight, and functionality to various residential spaces:
Lofts & Attic Conversions:
Create bright, comfortable rooms with direct overhead light and controlled airflow.
Upper-Storey Bedrooms:
Provide natural light, improved thermal comfort, and night-time ventilation without compromising privacy.
Home Offices & Studios:
Introduce even light distribution to support productivity and reduce reliance on artificial lighting.
Bathrooms & Ensuites:
Allow fresh air to escape through the roof, reducing moisture buildup and improving ventilation.
Renovations & Extensions:
Perfect for opening up previously dark roof spaces or adding architectural value to new builds.
VELUX roof windows are ideal anywhere you want more natural light and passive ventilation with minimal maintenance.
Complete Your Installation
To ensure a professional, long-lasting result, pair your VELUX roof windows with the correct accessories and installation components:
- VELUX Flashings: Designed for secure, weatherproof roof integration on tile or metal roofs
- VELUX Blinds & Shading Systems: Control light and heat with blackout, honeycomb, or Venetian blinds
- VELUX Opening Rods & Controls: Essential for hard-to-reach installations
- Roofing Membranes & Underlays: Improve weather resistance and energy efficiency
- Sealants & Fixings: Ensure correct mounting, flashing seating, and long-term air-tightness
Our team can guide you on the right accessories for roof type, pitch, and installation method to achieve optimal performance.
Get Your VELUX Opening Roof Windows from Blacktown Building Supplies
Ready to brighten your home with fresh air and natural light? Blacktown Building Supplies carries Sydney’s trusted range of VELUX opening roof windows in all popular sizes and configurations. Whether you’re converting an attic or upgrading an existing roof space, our team can help you select the right model and advise on installation requirements.
Call 1300 554 775 or request a quote online, our team is here to help with sizing, compatibility, and installation advice tailored to your project.
FAQs for VELUX Opening Roof Windows
What is the difference between Centre-Pivot and Dual-Action roof windows?
Centre-pivot windows rotate around a central hinge, making them easy to operate even when furniture sits underneath. Dual-action windows open both from the top hinge and via a centre pivot, giving you greater ventilation control and easier access for cleaning.
Are VELUX roof windows suitable for Australian weather?
Yes. VELUX roof windows feature high-performance glazing, UV protection, and built-in drainage systems engineered specifically for Australia’s harsh climate conditions.
What roof pitch is required?
Most VELUX opening roof windows require a roof pitch between 15° and 90°. Always check the specific model’s installation guide to ensure correct fit and performance.
Can the windows be installed in bathrooms or kitchens?
Absolutely. VELUX windows are perfect for wet areas because they provide excellent natural ventilation. Just ensure appropriate flashing is used for your roof type and choose moisture-resistant blinds where needed.
Do VELUX opening roof windows require maintenance?
Very little. Occasional cleaning of the glass and a quick inspection of seals and hinges is usually all that’s required to maintain smooth operation and long-term performance.