The Brett Martin Glass Roof Lantern is a glazed aluminium roof lantern designed to provide natural daylight for flat roof extensions and living spaces. It is commonly installed above kitchens, dining areas, and open plan rooms where increased daylight and a central roof feature are required.
The lantern sits on a prepared builders upstand and uses double glazed glass panels supported by a thermally broken aluminium frame. Two glazing layouts are available to suit different architectural styles.
Roof Lantern Style Options
Two glazing layouts are available depending on the appearance required.
Contemporary 4-pane roof lantern – Used where a simple lantern design with fewer glazing bars is preferred. This layout provides larger glass panels and a clean modern appearance.
Classic 6-pane roof lantern – Used where a more defined lantern structure is required. The additional glazing bars create a traditional lantern form that suits period style extensions.
The choice of style normally depends on the overall design of the property and the visual balance of the roof lantern within the extension.
Roof Lantern Size Options
The lantern is available in a range of standard sizes designed to suit common flat roof openings.
Lengths mm: 1500, 2000, 2500, 3000
Widths mm: 1000, 1500, 2000
Smaller lanterns are often used above compact kitchen extensions or dining areas where a focused source of daylight is required.
Larger lanterns are commonly installed in wider open plan rooms where greater daylight coverage is needed.
All sizes are based on external upstand dimensions.
Bespoke sizes are also available where a project requires a non standard opening.
Frame Construction
The lantern uses a thermally broken aluminium frame designed for overhead glazing.
Aluminium provides strong structural support while allowing slim profiles that maximise the glass area. The thermal break within the frame reduces heat transfer and improves overall thermal performance.
The aluminium frame is powder coated to provide long term protection against weather exposure.
Frame Colour Options
Frame colour combinations are available to match both interior finishes and external roof designs.
White inside / White outside – RAL 9010 - Used where a consistent white finish is required inside and outside the building.
White inside / Anthracite grey outside – RAL 9010 / RAL 7016 - Used where a light interior finish is preferred with a darker external frame to match modern windows.
Anthracite grey inside / Anthracite grey outside – RAL 7016 - Used for contemporary extensions where darker frames are used throughout the property.
Black inside / Black outside – RAL 9005 - Used where a bold frame colour is required both internally and externally.
White inside / Black outside – RAL 9010 / RAL 9005 - Used where a neutral interior finish is preferred while maintaining a darker exterior appearance.
Glass Specification Options
The lantern uses double glazed units designed for roof glazing applications.
Each glass unit includes:
- Toughened outer pane
- Low-E self cleaning coating
- Toughened inner pane as standard
The toughened outer pane provides strength and durability. The self cleaning coating helps rainwater remove surface dirt from the glass.
A laminated inner pane is also available.
1. Toughened inner pane – Used for standard roof lantern installations where toughened safety glass is suitable.
2. Laminated inner pane – Used where additional overhead protection is preferred. The laminated layer helps hold the glass together if damaged.
Glazing Tint Options
Two glazing tints are available to control daylight and solar heat.
Clear self cleaning glass – Used where maximum daylight transmission is required. This option is often chosen for north facing roofs or rooms that benefit from higher light levels.
Blue solar control glass – Used where reduced solar heat gain and glare are required. This option is commonly used on south facing extensions or large glazed spaces exposed to direct sunlight.
Installation
The roof lantern is designed for installation onto a builders upstand formed as part of the flat roof construction.
This installation method is commonly used on new extensions, refurbishment projects, and kitchen renovations where a roof lantern is added to introduce natural daylight into the room below.
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