definition
strict definition
automatic de-icing
Mechanical systems which melt or remove ice and snow from a structure's surface.
Automatic de-icing systems are mechanical devices or webs of hot tubes or wiring which melt or scrape snow and ice off of the surfaces of a structure. These do not include normal design features such as sloped roofs or window coverings.
The equipment acts on snow or ice at the structure, either through a mechanical device or through heat supplied by tubes or wiring. The definition includes both melting and physical removal, rather than requiring every system to work by heat.
A snow retention system holds snow on a roof to control its fall. De-icing equipment removes or melts it. A sloped roof or other passive surface shape can shed snow without being a de-icing device.
Related definitions
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automated storage retrieval system
Storage space where goods are shelved and retrieved by robots to enable high capacity. -
automatic window openers
Installed mechanisms which ease control of windows by opening them automatically. -
bird control
Any system or device installed to prevent birds from roosting or entering a structure or area. -
building maintenance unit
A mechanism which crawls over a building carrying humans or machines to clean or maintain the surface. -
central air conditioning
A system that cools multiple rooms through supply and return air ducts connected to central cooling equipment. -
cooling ceilings
Ceilings with chilled-water pipes or coils that absorb room heat, usually supplementing air conditioning. -
direct digital control
A computerized control system for the heating, cooling, and ventilation components of a structure. -
dock leveler
A permanently installed movable ramp that facilitates freight transport between levels in a loading area. -
elevator destination control
A programmed system that increases elevator efficiency by allowing passengers to choose their locations before boarding. -
floodlights on approach area
High powered illumination directed over an entrance area, access route, or loading dock. -
forklift charging station
A designated site for recharging the batteries of electrically powered forklift trucks. -
freight elevator(s)
Elevators with above-average cabin and lifting capacity, designated for moving furniture and goods between floors. -
guideway transport system
An installed network of guideways used for internal delivery and distribution. -
high-voltage connection
A direct cable connection supplying at least 1,000 volts from an alternating-current electrical grid. -
inclined elevator
An elevator that follows a path departing from a straight vertical line, whether diagonal or curved. -
indoor cranes
Industrial cranes inside an enclosed structure, using a boom and hoist to lift heavy objects. -
machine roomless elevator
One or more gearless traction elevators where the lift mechanism fits entirely within the hoistway. -
openable windows
Windows that move between a sealed position and an open position admitting outside air, excluding doors. -
parking guidance system
An automatic electronic system that gives drivers updated information and directions to available parking spaces. -
passenger elevator(s)
Elevators are available for the vertical transportation of tenants or regular users of the structure. -
radome
An enclosure that protects microwave transmission equipment while allowing radio signals to pass through. -
raised floors
A floor raised above the structural floor plate to create space for cables, wiring, and utility pipes. -
reception antenna
A metal coil or other device, usually on a roof, for picking up airborne broadcast signals. -
robotic facade maintenance
A mechanical system that uses robots or automatic machines to clean and maintain a building's facade. -
robotic parking system
A mechanical system that guides or moves cars into and out of parking spaces within a parking area. -
rooftop water tank
A large container on a building's roof for supplying water to its plumbing or fire protection system. -
satellite dish
A concave disc mounted on or near an object to relay microwave signals to or from satellites. -
smoke exhaust system
Ducts or other outlets designed to carry smoke or cooking fumes out of a building. -
snow retention system
A system on a roof designed to prevent large blocks of snow or ice from falling to the ground. -
structured cabling
Internal telecommunications cabling meeting Category 5, 5e, or 6 standards and fitted with modular sockets. -
transmission mast
A high rooftop or building-top mast carrying an antenna that broadcasts communication signals. -
tuned mass damper
A stabilizing device designed to move in a contrary direction when a structure sways. -
uninterrupted power supply
Facilities for ensuring continued power in the case of a blackout in the normal supply. -
working pit
A sunken work area positioned beneath a vehicle to provide access to its underside for maintenance or repair.