| 摘要 |
A screen for a glazed area such as a window or a door to reduce heat transfer has a board with a light reflective face and top and bottom tracks to permit attachment to the wall around a window or door opening. In a variant a transparent fluted plastic board has frame extrusions on the top and bottom edge to close the flutes and is supported in top and bottom tracks enabling the assembly to be lifted in and out and slid laterally. This variant can be installed in a window opening and exerts a double glazing and noise reduction effect.
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