Modular Rooflight

£1,145.00£2,430.00excluding VAT

Double Glazed Modular Rooflight - Silicone Joint

Rooflight Overview

Introducing our Modular Rooflights, specially designed to meet your unique requirements. With these rooflights, you can now create larger dimensions or even irregular shapes by combining our customised Flat Rooflight units.

What sets our Modular Rooflights apart is their versatility. You have the option to mount the components onto an upstand or easily abut them to a wall on up to three sides. This flexibility ensures that our rooflights can adapt to various architectural designs and settings.

  • Walk-on
  • Square
  • Rectangular
  • Circular
  • Triangular
  • Totally bespoke shapes
  • Wall abutment to up to three sides

Silicone Joint

Upgrade your space today with our exceptional modular rooflights. Our innovative design creates a sleek and modern look for smaller spans, while the frameless construction adds a touch of elegance.

Each panel is securely joined together using a durable silicone seal, ensuring a clean and seamless internal appearance. The structural silicon joint guarantees a strong and watertight connection between each unit, providing maximum reliability and protection against the elements.

Our frameless option with a self-supporting silicone seal is available in widths of up to 1.6 meters, offering ample coverage for various applications.

Experience the perfect combination of style and functionality with our reliable and easy-to-install modular rooflights. Enhance your space and let the natural light shine through.

Rooflight Specialist – Modular Multi Part Roof Frameless

Rooflight Feature

At Overhead Glazing, we go above and beyond by providing not just top-quality rooflights, but also comprehensive installation and survey services. We pride ourselves on ensuring a hassle-free experience for our customers. Plus, with our fast lead time, you can start enjoying the benefits of our rooflight solution without any unnecessary waiting.

  • Fully thermally broken aluminium frame prevents cold bridging, reducing the risk of condensation.
  • Compatible with both flat and pitched roofs
  • Designed to be installed on all roof pitches and roof types
  • Minimal framework: daylight is maximised while the visible framework is minimised
  • Install and survey services
  • Fast lead time



The Overhead Glazing rooflights product range incorporates double glazed safety glass units that are manufactured to BS EN 1279 – Insulating glass units and BS EN12150 – Thermally toughened soda lime silicate safety glass. The double glazed units in every rooflight we produce have a centre pane U value of 1.1W/m2K.

Our structurally bonded rooflight products incorporate double glazed units that feature three thermal components namely a low E coating, an argon gas cavity and a perimeter manufactured with a warm edge spacer bar.

For more information and benefits of these three components, click on the button below:

Please measure the EXTERNAL FINISHED surface of the kerb construction and input these sizes, we will work out the rest. Please refer to the technical section for further information.

What if I require a rooflight outside of the sizes quoted on our web page. In most circumstances we can produce the required size. For a price and further information, please do not hesitate to contact Overhead Glazing.

All our rooflights with the exception of modular, will arrive fully assembled. The rooflight will be suitably packaged. Weights are provided on every quotation and order acknowledgement. Please ensure you have sufficient labour resources / equipment on site to offload your rooflight order from our delivery vehicle as we do not offload.

The rooflight is structural bonded and therefore can be lifted by the perimeter frame or the glass (using suitable glass sucker or craneage).

Yes. Overhead Glazing standard specification is TOUGHENED Low E Safety Glass. ALL our rooflights are supplied with two panes of heat soak tested glass as standard. This increased specification reduces the chances of spontaneous breakage due to Nickel Sulphide inclusions.

We have purposely designed our rooflight products with our customers in mind and therefore they are very easy to install. They do not require a specialist to install and our warranty is not affected if installed by another party.

Please refer to the installation manual in the technical section for full details. The installation process, for a reasonably competent DIY person should take two-three hours from arriving on site.


It is important to us that our customers purchase with confidence. Our extensive technical section offers our customers a wealth of technical knowledge designed to do just that.

Throughout the years we have continued to develop and improve our products. Our extensive knowledge, expertise and attention to quality has defined us as a market leader in rooflight technology and products.

We aim to be professional and helpful at all times. Therefore, we are always available to discuss any technical issues or any other related concerns with our customers.

Technical drawings are available for download for each of our rooflight products and provide the necessary upstand / installation information required.

If you have any questions and would prefer to speak with one of our technical team please do not hesitate to contact us on 0208 0500 600. We’ll be happy to help.

thermal break rooflightS

Submit An enquiry