When it comes to enhancing the natural lighting and architectural appeal of a home, homeowners are often faced with a choice between two distinct roofing solutions: roof lanterns and flat roof lights. In this blog post, we’ll talk you through roof lanterns vs rooflights and their design, size options, and more to help you make an informed decision.
What is a Roof Lantern?

A roof lantern is a stunning architectural feature designed to flood your home with natural light. Typically a glazed structure with a pitched design, roof lanterns are often used in conservatories and flat roof extensions. They can be installed on existing roofs, including flat roofs, and come in a variety of colours and styles to match your home. Whether you’re looking to brighten up a living room or add a touch of elegance to a kitchen extension, a roof lantern can transform your space.
What is a Flat Roof Light?

A flat roof light is a sleek, modern solution designed to bring natural light into spaces with flat roofs. Flat roof lights are particularly popular in kitchen extensions, where they can be customised to match the style of the home.
What’s the Difference?
Roof lanterns are three-dimensional, glass-structured units within a roof. Their protruding design allows them to capture light from various angles throughout the day, significantly brightening the home.
Flat roof lights offer a more minimalistic design. These sleek solutions are ideal for homeowners seeking a clean, modern look without altering the roofline.
Lighting
With different shapes available, flat rooflights have greater flexibility in controlling the light’s effect—from square and rectangular to round windows there’s so many options available.
However, roof lanterns provide a more artistic light effect, rather than just adding brightness. Their three-dimensional design means they receive light from various different angles.
Ventilation
Roof lanterns do not have opening options, which means they cannot be opened for ventilation purposes. However, flat roof lights are available with manual or powered opening options, allowing fresh air to enter the home if you wish.
Installation
In terms of installation, both roof lanterns and roof lights are quick and easy to fit. With an installation time of as quick as 20 minutes for each, our roof lanterns are designed with both the homeowner and installer in mind.
Size

Our flat roof lights are available in 600mm x 1650mm, whereas our roof lanterns are available up to 3000mm x 2000mm. You can also opt for multiple flat roof lights to allow for more natural light in the home if you wish to do so.
Cost and Budget
When deciding between a roof lantern and a flat rooflight, cost and budget are crucial factors to consider. Roof lanterns can be more expensive but add significant value to your property as a unique architectural feature. On the other hand, flat roof lights are often more affordable, providing a cost-effective way to introduce natural light into your space.
Planning Permission
Roof lanterns and rooflights typically do not require planning permission if they meet the following conditions:
- They must not extend more than 150mm above the plane of the existing roof
- They must not be taller than the existing roof
- Side-facing windows must be obscure-glazed and, if openable, must have an opening at least 1.7 metres above the room’s floor level
For further details, please contact your local council.
Find out more about if you need planning permission for a roof window here.
Roof Lanterns vs Rooflights
Roof Lanterns
Pros
Roof lanterns are typically more decorative than flat roof lights, creating a standout architectural feature in any room. Due to their pitched roof design, roof lanterns allow more natural light to flood into the space from multiple angles, giving a room a brighter and more open feeling. The height they add can also make rooms feel larger, making them particularly appealing for spaces such as living rooms, kitchens, or extensions.
Cons
Roof lanterns tend to be more expensive than rooflights.
Flat Roof Lights
Pros
Flat roof lights offer a sleek and modern look that seamlessly blends into contemporary architecture. They allow light to enter directly from above, which can create a clear, unobstructed view of the sky.
Cons
Flat rooflights may not be as effective in making rooms feel taller or larger as roof lanterns are three-dimensional, creating a more spacious feel.
Choosing the Right Option for Your Flat Roof
When choosing between a roof lantern and a flat roof light for your flat roof, several factors come into play. If you’re looking to add a unique architectural feature and are willing to invest in a bespoke design, a roof lantern might be the best option. However, if you seek a cost-effective solution that provides ample natural light, a flat roof light could be more suitable.
Seeking More Information?
That’s all, now we’ve explored the differences between roof lanterns vs rooflights. Whether you’re drawn to a roof lantern or the sleek, seamless integration of a flat roof light, the choice ultimately comes down to your personal preferences and the specific needs of your property.
At QUAD, we’ve gathered a variety of resources tailored for builders to simplify the installation of our products. From in-depth guides to practical tips, everything you need is easily accessible. From windows and doors to roof products, we’re a one stop shop for everything you need for builders merchants. To find out more, or to become a partner today, simply fill out the online form or give us a quick call on 01782 340111.