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  2. VEKA - Wikipedia

    en.wikipedia.org/wiki/VEKA

    VEKA AG is a German extruder of uPVC profiles for use in windows, doors, roller shutters and sliding doors headquartered in Sendenhorst, Germany. [1] Founded in 1967 as a manufacturer of shutters, it currently operates its own extrusion facilities in twelve countries.

  3. Window - Wikipedia

    en.wikipedia.org/wiki/Window

    A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air.Modern windows are usually glazed or covered in some other transparent or translucent material, a sash set in a frame [1] in the opening; the sash and frame are also referred to as a window. [2]

  4. Polyvinyl chloride - Wikipedia

    en.wikipedia.org/wiki/Polyvinyl_chloride

    "A modern Tudorbethan" house with uPVC gutters and downspouts, fascia, decorative imitation "half-timbering", windows, and doors PVC is widely and heavily used in construction and building industry, [ 9 ] For example, vinyl siding is extensively is a popular low-maintenance material, particularly in Ireland , the United Kingdom, the United ...

  5. Casement window - Wikipedia

    en.wikipedia.org/wiki/Casement_window

    Casement windows, including awning and hopper types, "generally have lower air leakage rates than sliding windows because the sash closes by pressing against the frame." [3] Casement windows are also excellent for natural ventilation strategies, especially in hot climates. Casements allow more control of ventilation than flush-opening windows.

  6. Jharokha - Wikipedia

    en.wikipedia.org/wiki/Jharokha

    The jharokha darshan of rulers was a structure for displaying the ruler to his court or people rather than allowing inhabitants of the palace to look out unseen. It was therefore more open, and not necessarily built projecting out from its wall.

  7. Thermoplastic - Wikipedia

    en.wikipedia.org/wiki/Thermoplastic

    Early on, the health and environmental aspects of this were poorly understood and replacements and product bans resulted after studies. The original form is often referred to as unplasticized polyvinyl chloride (uPVC), which is the more commonly used type for installations such as water, waste, and sewer conveyance plumbing.