From Dark to Daylit: Rooflights in Single-Storey Extensions

As more homeowners choose to improve their current properties with extensions, there is a challenge of mitigating dark spots where the new addition meets the original building. Glass rooflights are a go-to solution for modern extensions, turning gloomy rooms into bright and welcoming spaces.

03.12.2025

A wooden wall with a tv on it. Above it letting natural daylight in.

As more people look to improve the home they have, as opposed to purchasing a new home in the current economic climate, extensions are proving an efficient way to upgrade your current living environment.

If you’re embarking on an extension journey, be it a minimalist kitchen or a light-filled orangery, it is important to note that adding depth to your home often creates a naturally dark zone where the extension meets the original building.

We see many homeowners solve this 'dark spot' with a glass rooflight, due to its ability to distribute natural daylight evenly throughout a room.

Why Rooflights are Essential for Modern Extensions

Modern home extensions rely on clean lines and an uninterrupted flow, which our glass rooflights perfectly deliver.

There is a growing demand for rooflights with a frameless look from the inside. Our flagship Flushglaze Fixed Rooflight achieves this perfectly. It is engineered to sit flush with the internal plasterboard, so all you see is a stunning, uninterrupted view of the sky, achieving a minimalistic aesthetic that many extending homeowners yearn for.

Unlike bulky roof lanterns or complex conservatory systems, our designs are focused on a sleek, discreet profile that allows natural daylight to penetrate into your space.

By strategically placing a glass rooflight, you can cancel out the shadows caused by the main house, ensuring your new extended space feels bright and spacious. Rooflights achieve this through their horizontal glazing, allowing up to two to three times as much natural daylight to enter the property when compared to traditional vertical windows. Their clever design ensures that the daylight is evenly distributed, allowing shadows and dark corners to be eliminated, whilst reducing your reliance on artificial lighting.

Position Your Rooflights for Impact

The positioning of your rooflight is important to ensure maximum daylight distribution, and ensure no daylight potential is wasted:

  • Key Work Areas: Position a rooflight directly over the kitchen island, dining table, or main countertop to provide abundant, glare-free task lighting.

  • Core of the House: If your extension has made the original rooms darker, place a rooflight as close to the original external wall as possible. This will channel light deep into the darker, central part of your home.

  • Balancing Daylight: In a large, open-plan space, a single and central rooflight can create a dramatic focal point. For a more even spread of light, consider using multiple smaller rooflights placed strategically.

  • Avoid Obstructions: Do not place the rooflight too close to a supporting beam or wall, as this can waste the daylight potential, you should instead aim for placement that allows the light to spread naturally.

Transformative Examples: See the Difference

Our glass rooflights don't just add light, they redefine the atmosphere and function of any room; From living rooms to bathrooms and conservatories.

The most popular rooflight we see implemented into extensions is the Fixed Flushglaze Rooflight due to its ability to distribute natural daylight through its frameless internal design. Other standout rooflights for modern extensions include the Flushglaze Eaves, Sliding Over Fixed, and more.

Realise Your Architectural Vision

A Glazing Vision rooflight is an investment in your home’s light quality, design, and long-term performance. Connect with our experts today to discuss the ideal rooflight to transform your extension from functional to beautifully daylit.