| Factory Mutual.
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| Federal National Mortgage Association.
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| see Cellular Concrete.
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| A extinguisher which releases chemical foam to put out fires.
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| Joint sealing material made of rubber or plastic foam strips.
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| system of soap bubbles or special foaming liquids brushed over joints and connections to locate leaks.
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| A rigid type foamed backing which acts as a plaster base.
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| Concrete made very light and cellular by the addition of a prepared foam or by generation of gas within the unhardened mixture.
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| A thermal insulation made by foaming glass with hydrogen sulfide; it is manufactured in the form of block or board and has a low fire hazard rating.
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| 1. Frothing. 2. Formation of a foam in an oil-refrigerant mixture due to rapid evaporation of refrigerant dissolved in the oil; this is most likely to occur when the compressor starts and the pressure is suddenly rced.
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| Free On Board; without charge for delivery to and placing on board a carrier at a specified point; FOB Jobsite means material cost includes cost of delivery to jobsite.
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| Depth of the earthquake focus (or hypocenter) below the ground surface.
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| The point of origin of an earthquake; the point at which the rupture occurs; synonymous with the hypocenter.
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| 1. Storage of concrete in a moist room in which the desired high humidity is achieved by the atomization of fresh water. 2. Application of atomized fresh water to concrete, stucco, mortar, or plaster.
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| Misting.
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| see Foil Backed Gypsum Board.
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| Gypsumboard with aluminum foil laminated to its back surface as a vapor retardant and thermal insulator. Also called Foil Back.
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| 1. Metal hammered into a thin sheet. 2. A cusped element in Gothic tracery.
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| A roof structure in which strength and stiffness derive from a pleated or folded geometry; special class of shell structure formed by joining flat, thin slabs along their edges so as to create a three dimensional spatial structure.
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| A door with hinged leaves, often provided with a ceiling or floor track.
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| A hinged stair, attached to and concealed within the ceiling, which can be raised and lowered.
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| A page number referring to the disposition of source of an entry or posting in the books of the business.
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| A receptacle in a church for baptismal water or holy water.
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| The action or process of making food ready for cooking and consumption.
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| Appliances, fixtures, and materials used in the cooking and serving of food in large quantities.
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| Metal grating usually located in floor near building entrance to allow for scraping of dirt, ice, and snow from footwear before proceeding to building interior.
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| A unit of length equal to 12 inches or 30.48 centimeters.
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| The illumination produced by one lumen of luminous flux spread uniformly over an area of one square foot.
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| 1. Drain around the perimeter of a building, at the footings, to drain groundwater or rainwater away from the building. 2. Drain at the footing of a retaining wall to prevent accumulation of hydrostatic pressure that could collapse the wall.
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| The temporary removal of earth for installing a footing.
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