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Approved drop out (or drop-out) ceilings allow the installation of a dropped ceiling beneath existing fire sprinklers because the tiles, sometimes called melt-out ceiling tiles, are heat-sensitive and are designed to fall from the dropped ceiling suspension grid during a fire, allowing the sprinklers to spray their water.
Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum; however, some drop-ceiling designs create a tight seal that does not allow for airflow and therefore may not be considered a plenum air-handling space. [1] [2]
A ceiling can also be the upper limit of a tunnel. The most common type of ceiling is the dropped ceiling, [citation needed] which is suspended from structural elements above. Panels of drywall are fastened either directly to the ceiling joists or to a few layers of moisture-proof plywood which are then attached to the joists. Pipework or ducts ...
It takes minutes to do water changes and there isn’t a drop spilled. Wife approval factor 9/10. ... New smart ceiling fan / light that looks modern (replaced 20 year old one that looked very ...
curvature of e.g. plasterwork to fill the space above the kitchen cabinets, at the corner of the ceiling and wall: coving (interior design) underside of office ceiling of tiles (often gypsum) suspended, fastened or bonded to a grid system attached to the walls and/or ceiling: false/suspended ceiling (tiles/grid) or dropped ceiling
The Wheeling Corrugating Company out of Wheeling, West Virginia, became the leading tin ceiling manufacturer in the late 1800s. At that time, Wheeling Corrugating was a large steel mill that also made products from their steel sheets such as roofing and siding. [6] Sheets of tin were stamped one at a time using rope drop hammers and cast iron ...
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