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Mardome Link Glass Skylight

Available on a Bespoke Made to Measure Basis 

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Mardome Link Glass Skylight 

Installing a glass skylight is one of the most effective ways to transform an interior space. By introducing abundant natural light, the Mardome Link Glass Skylight reduces reliance on artificial lighting, creating a brighter and more inviting atmosphere.

Designed to suit contemporary architecture, this sleek flat roof solution is part of the premium Mardome skylight range. Its minimalist appearance, combined with advanced thermal insulation and durable construction, makes it ideal for both residential and commercial applications. As one of the most refined fixed rooflights available, it delivers performance without compromising aesthetics.

Features of the Mardome Link Glass Skylight

Minimalist Design 

The contemporary, low-profile design maximises daylight penetration thanks to a slim, extruded aluminium framework that is barely visible from inside the building. This clean finish complements modern interiors while maintaining structural integrity.

The skylight is factory assembled, making it easy to install and requiring minimal ongoing maintenance beyond routine cleaning.

Thermally Efficient 

Energy performance is a defining characteristic of the Mardome Link Glass Skylight. With a glass U-value of just 1.1 W/m²K, it is among the most thermally efficient double-glazed flat rooflights currently available.

The fully thermally broken aluminium system significantly reduces heat transfer, supporting excellent thermal insulation and helping to maintain comfortable indoor temperatures throughout the year. This high level of performance contributes directly to lower heating demand and improved overall energy efficiency.

Glass Specification (32.4mm overall – 1.1 W/m²K):

  • 6mm toughened outer glass

  • 16mm cavity filled with 90% argon gas

  • 9.5mm laminated inner glass with soft-coat Low-E coating

These advanced double-glazing specifications ensure optimal performance from the sealed glass units, enhancing comfort while reducing energy loss.

Strong Aluminium Frame

The skylight features a robust aluminium frame engineered to provide exceptional strength and long-term stability. This reduces movement after installation and offers enhanced support to the glass.

The frame encapsulates the glass at its most vulnerable points, protecting against accidental impact. Tamper-proof fixings and high-performance silicone sealants further enhance security and weather resistance.

Quick & Easy Installation

Designed for installation on all modern roof types, the Mardome Link Glass Skylight allows for rapid fitting without compromising performance.

Factory-assembled modules simply lap together, enabling continuous runs of unlimited length where required. All units are manufactured under ISO 9001 and ISO 14001 accredited systems, ensuring consistent quality and environmental responsibility.

Benefits of the Mardome Link Glass Skylight:

  • Modern, stylish flat glass rooflight design
  • Available in a wide range of standard sizes
  • Modular units lap together for seamless installation
  • Spans of up to 3800mm are achievable
  • Excellent thermal performance with U-values as low as 1.9 W/m²K (product dependent)
  • An optional 10-year warranty is available
  • Quick and straightforward installation
  • Flush finish across all modules, including opening units
  • Concealed components on powered opening rooflights
  • Dual-colour powder-coated aluminium frame as standard
  • Fully thermally broken aluminium framework

 

Modular Flat Glass Rooflights 

Skyseal Glass Link modules are a system of premium quality factory assembled glass rooflight units that simply lap together to form continuous rooflights of unlimited length. Modules are constructed from structurally glazed double glazed units in a powder coated, fully thermally broken aluminium frame.

The product is designed for simple and rapid installation on roofs of all modern building types to provide natural light, and comfort ventilation where specified. Skyseal Glass rooflights are manufactured using systems fully accredited to ISO 9001 and ISO 14001.

Minimalist Design 

The sleek contemporary design achieves maximum daylight due to the minimalistic framework finish which is barely visible from the internal of the building. The units are very easy to install and require very little maintenance, other than periodic cleaning.

Thermally efficient 

With a centre pane U-value of 1.1 W/m2K, the Skyseal Glass Link is one of the most thermally efficient double glazed roof lights in the market. 

Glass Spec:

  • 32.4mm Overall (1.1 W/m2K)
  • 6mm toughened outer
  • 16mm 90% Argon filled cavity
  • 9.5 mm laminated soft coat Low-E inner

Advantages over traditional systems:

  • Factory assembled modules simply lap together for a swift installation of unlimited length.
  • All modules are flush including opening ones.
  • Components of powered opening rooflights are completely concealed for an unobstructed light well.
  • Dual colour powder coated as standard, fully thermally broken aluminium framework. Option to powder coat in any single RAL colour.
  • Spans of up to 3800mm are possible with individual modules of up to 3800x1750mm allowing for large uninterrupted daylight areas.
  • Suitable for installation at pitches of *2-35° across span and 15° along length (*Some larger sizes will require a minimum installation pitch of up to 5°.)
  • U-value of 1.31* to 1.65**W/m2K. (*3800x1650mm fixed module)(**1000x1000mm opening module)
  • CWCT TN-92 tested (for class 2 roofs) and ACR[M]001 Class B non-fragile.

Composition

The double glazed glass panels are made up of 6mm toughened outer, 90% argon filled cavity, with a 9.5mm laminated inner (inc. 1.5mm PVB interlayer). For larger pane sizes the inner pane thickness is increased to 11.5mm. The frame is manufactured from extruded aluminium, powder coated in RAL 7016 externally and RAL 9010 internally as standard (other colours are availible). It is fully thermally broken to provide excellent thermal performance. Other integral components comprise of ABS and PVC. The Glass, Aluminium, PVC and ABS can all be recycled at the end of useful product life.

Durability 

Skyseal Glass rooflights are expected to remain fit for purpose in normal industrial conditions for a period of 20 years (guaranteed for 10 years), i.e. they will not become perforated, lose significant structural integrity or distort to the extent of losing weather-tightness. Electrical equipment (where present), is guaranteed for a period of 1 year; actuators have a design life of at least 10,000 cycles. Insulated glass used in the construction of the rooflight is guaranteed for 5 years.

An Overview
SKU sl-skyseal-glass-link
Stock Type Made to Measure
Frame Material Aluminium
Frame Colour Grey
Thermally Broken Frame Yes
Overall U-Value 1.25W/m2K
Brand Name Mardome
Skylight Type Fixed, Manual Opening, Powered Opening
Skylight Style Flat Glass
Kerb Options No Kerb
Trickle Vents No
Glazing Material Glass
Glazing Tint Clear
Glass Thickness 32.4mm
Glass U-Value 1.1W/m2K
Warranty 10 yrs
Downloads
Documentation (7)
Questions & Answers (3)

Will the Skyseal Flat Glass roof light make my room cold?

The Skyseal Flat Glass uses a 24mm double glazed pane of glass which has a U-value of 1.1 W/m²K. The overall U-value of the skylight is 1.25 W/m²K. This should ensure that the heat stays in and the cold stays out.

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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