Roof Lantern Skylights
How do I measure and choose the correct size Skyseal Laminated Glass Roof Lantern?
The Skyseal Laminated Glass Roof Lantern is custom-made to your exact sizes. We work from external measurements and recommend your upstand is a minimum of 85mm wide.
To calculate your required size, measure the length and width from the outside edge of your timber upstand and fitted waterproof membrane.
How do I install my Skyseal Laminated Glass Roof Lantern?
The Skyseal glass roof Lantern is delivered in kit form, ready to mount onto a weathered builder's upstand. Watch our step-by-step Skyseal glass roof lantern installation video to get started.
Which Frame Colour options are the Skyseal Laminated Lantern available in?
Our Skyseal Glass Roof Lantern can be manufactured to any RAL colour. Three standard colours are available at no extra cost, and you can specify different colours for internal and external frames:
Anthracite Grey (7016)
Matt Black (9005)
Satin White (9010)
What Glass Tint options are the Skyseal Laminated Lantern available in?
The Skyseal Glass Roof Lantern is available in two standard glass tints: Clear Self-Clean and Blue Solar Self-Clean. Please refer to the Skyseal Roof Lantern Datasheet for further details.
What is a Self-Cleaning roof light?
Self-cleaning glass contains a special coating that prevents water adhesion to the glass surface, allowing rainwater to sheet across the skylight and remove accumulated dirt particles, significantly reducing maintenance needs, particularly for hard-to-reach roof installations.
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Can the Skyseal Laminated Roof Lantern be made to bespoke sizes?
Yes, the Skyseal Glass Roof Lantern can be custom-made to your required dimensions, though bespoke sizing may carry additional costs.
How will my order be delivered?
We provide kerbside delivery for all of our skylights. Once your order has been placed, you will be notified of your scheduled delivery date. At this stage, we will also advise how many people are recommended to be onsite to safely receive the delivery, based on the weight and size of your order.
Will a Skyseal Laminated Lantern make my room cold?
The Skyseal Glass Roof Lantern is one of the UK's most thermally efficient double-glazed roof lanterns. With a complete roof U-value of 1.25 W/m²K, it keeps your home comfortable year-round.
Do the Skyseal Roof Lanterns comply with building regulations?
Yes, Skyseal Roof Lanterns are fully compliant to Part L Building regulations.
Do I really need Triple Glazing?
Triple Glazed skylights offer impressive thermal performance with U-values as low as 0.6 W/m²K, but the practical benefits may not justify the higher costs for most homes, as quality double glazing often provides sufficient insulation with better overall value.
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Will a Lantern Roof Light be difficult to handle and get up onto my roof?
For ease of handling, all of our Lantern Roof Lights are delivered in kit form and leave the factory with all components checked and quality controlled. Your builder or installer will have a comprehensive installation guide with all dedicated parts required for a speedy installation.
What is Light Transmission?
Light Transmission is the percentage of visible light that passes through a skylight's glazing, with higher percentages allowing more natural daylight into your living space, potentially reducing the need for artificial lighting and creating a brighter interior environment.
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What is Solar Heat Reflection?
Solar Heat Reflection measures a skylight's ability to return solar energy to the atmosphere rather than allowing it to enter your home, with higher percentage values indicating greater effectiveness at keeping interior spaces cooler during warm weather.
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What is a U-value?
U-value, or thermal transmittance, is a crucial measurement that quantifies how effectively a building element prevents heat from escaping or entering a structure. Measured in Watts per square meter Kelvin (W/m²K), this standardised value is particularly important when evaluating the thermal performance of skylights and roof windows.
The U-value specifically indicates the rate of heat transfer through a building component – in this case, a Skyseal skylight. The lower the U-value, the better the thermal insulation properties and the more energy-efficient the skylight will be. This translates directly to improved temperature regulation in your home and potential savings on heating and cooling costs.
The current UK Building Regulations establish specific U-value requirements for various building elements to ensure compliance with energy efficiency standards. For skylights and roof windows, existing dwellings must achieve a maximum U-value of 2.2 W/m²K, while new construction projects typically require more stringent values between 1.2 and 1.7 W/m²K, depending on the specific application.
Our premium skylight range exceeds these regulatory requirements, with models featuring advanced glazing technologies that deliver exceptional U-values as low as 0.9 W/m²K in some configurations. This superior thermal performance contributes to reduced energy consumption, a smaller carbon footprint, and enhanced comfort through consistent interior temperatures regardless of external weather conditions.
What is a Thermal Break?
A thermal break is a low-conductivity material layer integrated into a skylight's aluminium frame that prevents the internal frame surface from becoming cold, effectively eliminating condensation problems while improving overall energy efficiency.
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What is Low-e Solar Glass?
Low-e solar glass features a special metallic coating that reflects heat back to its source, keeping rooms warmer in winter by retaining interior heat and cooler in summer by reflecting solar heat away, while still allowing natural light to enter.
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Any other questions?
Ask our team of inhouse experts who will be happy to have a chat and help you with your enquiry.
