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Designed by the architect Peter Ellis and built in 1864, it is the world's first building to feature a metal-framed glass curtain wall. 16 Cook Street, Liverpool, 1866. Extensive use is made of floor-to-ceiling glass, enabling light to penetrate deeper into the building, thus maximizing floor space. Glass curtain wall of Bauhaus Dessau, 1926
In a curtain wall screen, however, the mullions only support the weight of the transoms, glass and any opening vents. Also in the case of a curtain wall screen the weight of glazing can be supported from above (providing the structure can take the required loads) this puts the mullions under tension rather than compression.
In architecture, a transom is a transverse horizontal structural beam or bar, or a crosspiece separating a door from a window above it. This contrasts with a mullion, a vertical structural member. [1] Transom or transom window is also the customary U.S. word used for a transom light, the window over this crosspiece.
A transom window is a window above a door. In an exterior door the transom window is often fixed, in an interior door, it can open either by hinges at top or bottom, or rotate on hinges. It provided ventilation before forced air heating and cooling. A fan-shaped transom is known as a fanlight, especially in the British Isles.
Therefore, thermal insulation profiles are used to create a thermal separation of the inner and outer shells of metal frames. The variety of thermal insulation profiles (Insulbar) allows low U f values (for example 1.3 W/m 2 K by using a 34mm insulation profile and up to 1.1 W/m 2 K with contemporary aluminum systems) to be reached.
Thermal insulation is the reduction of heat transfer (i.e., the transfer of thermal energy between objects of differing temperature) between objects in thermal contact or in range of radiative influence. [1] Thermal insulation can be achieved with specially engineered methods or processes, as well as with suitable object shapes and materials.
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