Search Results for H hang To install a door or window within its respective frame and/or by its respective hardware. hanger A strip, strap, rod, or similar hardware for connecting pipe, metal, gutter, or framework, such as a hung ceiling to its overhead support. hardboard Dense sheets of building material made from heated and compressed wood fibers. hardener Any of several chemicals serving to reduce wear and dusting when applied to concrete sustaining heavy traffic, such as a floor. hardware A general term encompassing a vast array of metal and plastic fasteners and connectors used on or in a building and its inherent or extraneous parts. The term includes rough hardware, such as nuts, bolts, and nails and finish hardware, such as latches and hinges. haunch A bracket built into a wall or column to support a load falling outside the wall or column, such as a hammer brace in a hammer-beam roof. haunched beam A beam or similar member broadened or thickened near the supports. haunched floor A floor slab thickened around its perimeter. head flashing In a masonry wall, the flashing over a projection, protrusion, or a window opening. header (1) A rectangular masonry unit laid across the thickness of a wall, so as to expose its end(s). (2) A lintel. heat exchanger A device designed to transfer heat between two physically separated fluids. The fluids are usually separated by the thin walls of tubing. heat pump A refrigeration system designed to utilize alternately or simultaneously the heat extracted at a low temperature and the heat rejected at a high temperature. heel The bottom inside edge of a footing or a retaining wall. high chair Slang for a heavy, wire, vaguely chair-shaped device used to hold steel reinforcement off the bottom of the slab during the placement of concrete. hip rafter The rafter, which, in essence, is the hip of a roof, by virtue of its location at the junction of adjacent, inclined planes of a roof. hip roof A roof formed by several adjacent inclining planes, each rising from a different wall of building, and forming hips at their adjacent sloping sides. hollow masonry unit (hollow block) A masonry unit in which the net cross-sectional area is less than 75% of the gross cross-sectional area when compared in any given plane parallel to the bearing surface. hollow metal door A hollow-core door constructed of channel-reinforced sheet metal. The core may be filled with some type of lightweight material. hollow metal frame A doorframe constructed of sheet metal with reinforcing at hinges and strikes. hollow-core door A flush door with plywood or hardwood faces secured over a skeletal framework, the interior remaining void or honeycombed. honeycomb In concrete, a rough, pitted surface resulting from incomplete filling of the concrete against the form-work, often caused by using concrete that is too stiff or by not vibrating it sufficiently after it has been poured. horizontal bridging Perpendicular braces between joists or beams placed horizontally to stiffen the system and distribute the load. hot water heating system One in which hot water is the heating medium. Flow is either gravity or forced circulation. hot-air furnace A heating unit in which air is warmed and from which the warmed air is drawn into ducts to be carried throughout a building or selected portion thereof. house sewer The exterior horizontal extension of a house drain outside the building wall leading to the main sewer, either public or private, and connecting directly to the sewer pipe. HOW Home Owners Warranty humidity The water vapor contained in a given space, area, or environment. HVAC Heating, ventilating, and air-conditioning hydronic A term pertaining to water used for heating or cooling systems. hydrostatic pressure Pressure exerted by water, or equivalent to that exerted on a surface by water in a column of specific height. hygroscopic Having the tendency to absorb and retain moisture from the air. hypalon roofing An elastomeric roof covering available commercially in liquid, sheet, or putty-like (caulking) consistency in several different colors. Hypalon roofing is more resistant to thermal movement and weathering than neoprene. Search Again