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    Roof glazing · Buying guide

    Roof Lantern vs Flat Roof Light: Which Is Best for Your Extension?

    Architectural height or a low-profile finish? Compare the two roof glazing options.

    Rectangular flat roof light above a kitchen, with a black frame and blue sky visible through the glass

    What is a roof lantern?

    A roof lantern projects upwards from the flat roof and uses multiple glazed sections to create an architectural feature.

    Lanterns can add a sense of height and work particularly well above kitchen islands, dining areas and larger open-plan extensions.

    What is a flat roof light?

    A flat roof light has a much lower profile.

    The result is generally more minimalist and contemporary while still allowing substantial natural light into the room below.

    Introducing natural light from above can make a major difference to an extension, particularly where extending a property has moved the original windows further away from the centre of the room.

    Two popular solutions are roof lanterns and flat roof lights.

    What is a roof lantern?

    A roof lantern projects upwards from the flat roof and uses multiple glazed sections to create an architectural feature.

    Lanterns can add a sense of height and work particularly well above kitchen islands, dining areas and larger open-plan extensions.

    What is a flat roof light?

    A flat roof light has a much lower profile.

    The result is generally more minimalist and contemporary while still allowing substantial natural light into the room below.

    Which lets in more light?

    Both products can introduce significant natural light.

    The overall effect depends on factors including the dimensions, position, roof construction and orientation rather than simply whether the product is a lantern or flat roof light.

    Which should you choose?

    Consider the architectural style of the extension.

    If you want the roof glazing itself to become a feature and create additional visual height, a lantern may be preferable.

    If you want a clean, contemporary and understated appearance, a flat roof light may be more appropriate.

    Bi Folds & Windows Direct supplies roof lanterns and flat roof lights alongside windows, bifold doors and sliding doors, allowing the complete glazing package for an extension to work together.

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