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Roof Lights - Structurally Silicone Bonded
Rather than relying on a traditional aluminium framework such as 'patent glazing' to support the double-glazed panels, why not have the glass do all the work?
Glass is a very strong material and can support great loads (see 'glass flooring' for more information). Also, the air within the double glazed units is a good insulator - hence the reason why it is hermetically sealed, to stop heat/cold transference.
Designing the glass roof light to be self-supporting, with no aluminium supports, results in a much lighter appearance, giving designers and their clients a bigger 'wow factor', and at the same time being more effective and efficient in insulating the property into which it is installed.
Glass is strong enough to cope with some significant loads, and is able to span up to 1700mm without deflecting (based on a 10mm toughened outer sheet, 16mm spacer and a 6mm toughened inner sheet).
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Bank of China, Beijing, China
Spherically bent laminated safety glass
I.M. Pei, New York
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Colt Braat glazing systems offer designers a flexible means of introducing natural daylight into buildings and is also an attractive option for external canopy applications.
A wide variety of forms, shapes, glazing types and profiles can be accommodated for roof glazing and glazed facades: single and double pitches, with or without sides, pyramids, and rounded glazing elements. Profiles may be polyester powder painted, anodised or mill aluminium. Certificates for type testing by third parties are available.
Colt offers a complete design, manufacture, project management and installation service to Architects and Contractors for glass rooflights and structural glazing (roof glazing as well as glazed facades). Colt's range lends itself to integration with other Colt products such as solar shading louvres and ventilators, thereby the complete glazing system can provide added features such as daylight optimisation and ventilation.
Colt offers the client an in depth know-how of a wide spectrum of technologies which enables us to handle complex projects, as well as an innovative attitude and capability, backed up by its own Manufacturing and R&D facilities, which enable the development of unique or improved solutions for the client.
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Often viewed as being out of date, there are still good reasons to specify the use of patent glazing. Where there is a need to match the style of the building, patent glazing will complement the design.
Where minimal intrusions are required, the use of the inverted 'T' sections allows head heights to be maximized. Roof vents will need to be framed, rebated and gasketed - needing a patent glazing bar.
With a variety of thermally broken patent glazing bars available we are able to accommodate different loadings, subject to calculating the pitch of the roof, glass weights, etc.
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A glass roof will transform a room that has few or no windows into a light, naturally ventilated space. Particularly effective for kitchens, stairwells, restaurants and shops, they add height to a low room and can make a dramatic architectural feature. A light-filled glass building can be created from an existing flat-roofed building by simply replacing most of the ceiling with a lantern roof.
Double curvature
For the atrium entrance to a villa in Monaco we used curved glass to create an ogee profile to the roof.
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The self-cleaning glazing clearly reduced the frequency of cleaning: the sun and the rain work for you!
You save spare time: finished the drudgery of cleaning.
You clean your glazings more easily and made reduced maintenances. You profit from a good vision through your glazings, even in rainy weather.
You contribute to environmental protection by reducing the use of detergents.
The self-cleaning double glazing combines with the other functions of glass: Thermo isolation of winter and summer, soundproofing, protection of the goods and the people.
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