FAQ

Our most frequently asked questions regarding aluminium and PVCu roof lanterns, skylights, and orangeries all in one handy place. If there's anything you still need to know, give our friendly team a call.

What is a u-value?

The U-value of a product measures how effective its insulation properties are. The lower the U-value, the better the insulation. As a guide, a standard double-glazed window typically has a U-value of 2.8 W/m². Our super insulating units achieve a U-value of 1 W/m².

Will it be noisy if it rains?

Sound insulation is important when choosing your roof lantern. There are four main factors that can limit rain noise: The number of panes of glass — noise levels are reduced with each additional pane The distance between the panes — the greater this distance, the better your sound insulation will be The thickness of each pane of glass — thicker panes absorb more noise How well your lantern is sealed against the roof. Further insulation in the skylight’s structure help keeps rain noise to a minimum.

What is the largest aluminium roof lantern you make?

Our aluminium roof lanterns can go up to 3000mm in width and a length up to 6000mm. We can also produce the PVCu Skypod skylight up to a length of 8000mm. Please note, larger roof lanterns do require the introduction of additional glazing bars.

How long until my roof lantern is delivered?

Aluminium roof lanterns and PVCu skylights are usually delivered to your site within 7 - 10 working days, however this can sometimes be longer depending on manufacturing load and delivery schedules. Please be advised that glass may occasionally arrive a day or two after the frame.

What is a thermal break?

A thermal break is a material with low thermal conductivity that is placed between two different conductive materials. Its job is to reduce or prevent the flow of thermal energy. In our products, these thermal breaks include resin, silicone and styrofoam, which separate the conductive aluminium components to provide superb thermal insulation.

What pitch should my lantern be?

We offer aluminium and PVCu roof lanterns in pitches of 20º and 35º.

How do I get a price?

Simply visit the relevant product page and choose your roof light's required sizes for an instant price.

What sizes should I measure?

The measurement we work from is the external size — so measure the external size of your roof light's upstand.

What are your payment terms?

Payment terms for normal orders are strictly pro-forma, using Visa, Mastercard, bank transfer, or Paypal. 

Still have questions?

Transform your home with an aluminium roof lantern

Bring the outside in with an aluminium roof lantern or PVCu skylight from Roof Lanterns Online. Transform a flat roof by adding a pitched or flat roof light to create a flawless opening to the outside, producing a modern and alluring living space you and your family will be certain to enjoy.

Not sure which roof lantern would be best for your home? Get in touch with us today to speak with one of our friendly team who will advise you on which is the best roof lantern or skylight for your needs.

What makes us different

At Roof Lanterns Online we aimed to simplify the process of buying your aluminium roof lantern or skylight. We are an online, supply-only company with some of the most competitive prices on aluminium roof lanterns in the UK from brands such as Korniche, Skypod, Mardome, and Stratus.

Simply choose your PVCu or aluminium roof lantern in your chosen size and colour, pick your glass option, and check out. Your aluminium roof lantern will then be delivered to you in 7 – 10 working days.

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