What are the pros and cons of roof lanterns?

20th Aug 2019
lantern roof extension project

Planning an extension? Looking to increase the natural light in your home? No matter the reason for your interest in roof lanterns, wouldn’t it be great to have an easy breakdown of the pros and cons? The experts at Sheerwater Glass are here to help, beginning with the perceived ‘cons’ of aluminium roof lanterns.


White aluminium roof lantern interior view


Aluminium? That’s really expensive. Unfortunately, many people perceive it to be an expensive material, but you know that you’re guaranteed to get your money’s worth with aluminium. The material is synonymous with strength and durability. Its strength allows for slimmer sightlines providing a better view of the sky above and allowing more natural light to flood the room. Aluminium’s durability means that you can expect a longer lifespan than a uPVC equivalent, so they offer better long-term value too.

Heat loss

The room will be colder, more glass means more heat loss. This isn’t the case with the roof lanterns from Sheerwater Glass. The aluminium frame is designed to be as energy-efficient as possible, with an insulating T-bar and thermally broken eaves beam. Combined with high-performance glazing, our aluminium roof lanterns can achieve U-values as low as 1.0 W/m2K. This results in a more consistently comfortable temperature and that the roof lantern will have almost no effect on your energy bills.


A roof lantern is difficult to reach. It’ll get filthy. With a self-cleaning glass option available, maintenance isn’t a problem at all. The glass features a specialist coating that breaks down dirt using daylight and utilises rainwater to wash the residue away. Even without this specialist layer, the angle of the roof allows rainwater to remove the majority of the dirt build-up.


Black aluminium roof lantern

Increase of natural light

Studies frequently reiterate the importance of natural light for our health, from a boost in vitamin D to improving our focus and productivity. A stream of natural light is welcomed into the room due to the roof lantern’s spas and ridge sections, which are amongst the slimmest available on the market today.

Improve the home’s aesthetic and customise to your home and personal taste

The roof lantern is truly beautiful inside and out. It adds a contemporary style to any home with its slim, elegant look. Every precision-engineered component of the roof lantern has been crafted to work in harmony and improve your home’s aesthetic while doing it. The roof lantern is also available in a range of colours, with the option to choose one colour for the interior and another for the exterior to complement the inside and outside of your home.

Manufactured from aluminium

Aluminium’s strength, paired with the innovative glass lock system and tamper-proof fasteners on our roof lanterns, makes them practically impossible for intruders to gain entry into your home. The roof lantern features some of the best seals and gaskets available to allow it to handle even the worst the British climate can throw at it.

Aluminium roof lanterns and more for your Surrey home

For more information on our aluminium roof lanterns or any more of our extensive product range, contact us online or give us a call on 01932 344 415.