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A retractable roof is a roof system designed to roll back the roof of a structure so that the interior of the facility is open to the outdoors. [1] Retractable roofs are sometimes referred to as operable roofs or retractable skylights. The term operable skylight, while quite similar, refers to a skylight that opens on a hinge, rather than on a ...
The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the 1970s. [6] [7] In 1980, the first automatic door using an infrared sensor was ...
Fleetwood RV's origins date back to 1950, when John C. Crean formed Coach Specialties Company in southern California, as a maker of window blinds for travel trailers. [2] Around 1953, Crean renamed the company to Fleetwood Trailer Company, a name inspired by the automotive bodies incorporated into various Cadillac lines of automobiles . [ 2 ]
Remote skylights are composed chiefly of a solar collection dish, a "heliotube" and a distribution dish. [1] The collection and distribution dishes are both parabolic reflectors . The collection dish is connected to a heliostat , a mechanism which tracks the transit of the sun across the sky, so as to maximize the intensity of light falling ...
A door closer is a mechanical device that regulates the speed and action of a door’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior. Door closers can be linked to a building's fire and security alarm systems. [2]
Skylights are light transmitting fenestration (products filling openings in a building envelope which also includes windows, doors, etc. [according to whom?]) forming all, or a portion of, the roof of a building space. Skylights are widely used in daylighting design in residential and commercial buildings, mainly because they are the most ...
A retractable skylight rolls (on a set of tracks) off the frame, so that the interior of the facility is entirely open to the outdoors, i.e., not impeded by a hinged skylight. The terms retractable skylight and retractable roof are often used interchangeably, though skylight implies a degree of transparency. Tubular daylight device
VELUX is a Danish manufacturing company that specialises in roof windows, skylights, sun tunnels and related accessories. The company is headquartered in Hørsholm, Denmark and is a part of VKR Holding A/S. VELUX Group is a founding partner of the global Active House Alliance.
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