Roof Domes

Roof domes are a cost-effective and reliable way to bring bright, even daylight into flat roof areas. Ideal for extensions, commercial buildings and service rooms, they offer excellent weather resistance, strong light transmission and long-lasting durability. With options for fixed, ventilated and access designs, there is a roof dome solution for every project.

Roof Dome Solutions for Bright, Even Light Distribution

A roof dome provides impressive natural light spread thanks to its curved profile, which helps illuminate rooms more evenly than traditional flat glazing. These domes are lightweight yet extremely durable, making them perfect for kitchens, hallways, bathrooms, garages and outbuildings. They are available in various glazing types, including clear, diffused and opaque, depending on the privacy and light level you need.

Dome Rooflight Options Designed for Flat Roof Extensions

A dome rooflight is an excellent choice for modern flat roof extensions, offering a sleek appearance with strong daylight performance. Its raised design promotes effective water run-off, reduces pooling and enhances clarity. Dome rooflights come in fixed and opening versions, including hinged and electric options, allowing you to improve both daylight and ventilation in your living spaces.

Roof Domes Built for Durability, Security and Weather Protection

Many of our roof dome options feature impact-resistant polycarbonate or high-performance triple skin glazing for added strength and thermal efficiency. They are engineered to withstand harsh weather, provide excellent insulation and offer reliable long-term performance. Secure fixing systems and reinforced frames ensure your home remains protected year-round.

Ventilated and Access Dome Rooflight Options for Added Functionality

For rooms that require airflow or roof access, a dome rooflight with ventilation or access capability is the ideal solution. These opening designs help improve indoor air quality, reduce moisture build-up and provide safe access to flat roof areas for maintenance.

Accessories and Upgrades for Better Control and Comfort

Enhance your dome installation with trickle vents, security fixings, insulated upstands and specialised glazing options. These upgrades help you achieve better insulation, noise reduction, ventilation and safety.

FAQs

Are roof domes suitable for home extensions?
Yes — a roof dome is perfect for flat roof home extensions, offering strong daylight, durability and excellent value.

Is a dome rooflight better than a flat roof window?
A dome rooflight offers superior water run-off and even light distribution, while flat roof windows provide a more contemporary glazing style. The best choice depends on your project.

Do roof domes provide good insulation?
Modern roof domes often feature double or triple skin glazing, helping improve insulation and reduce heat loss effectively.

Check out our other Roofing Supplies and Roof Windows & Lanterns range at JJ Building Materials.