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Abstract
NON-STOP INCREASES IN URBAN LAND COSTS HAVE LED TO MORE EFFICIENT USE OF SPACE BY BUILDING OWNERS. THIS INCLUDES NOT ONLY BUILDING UPWARD, BUT ALSO DOWNWARD. WATERPROOFED PLAZAS OVER OCCUPIED UNDERGROUND FACILITIES AND ROOF TERRACES (SOMETIMES CALLED WATERPROOFED DECKS) BECAME POPULAR WAYS OF MAXIMIZING BOTH HORIZONTAL AND VERTICAL SPACE. UNDERGROUND SPACES WERE ONCE LIMITED TO STORAGE AREAS, ACCESS TUNNELS, AND PARKING GARAGES. HOWEVER, WITH THE ADVENT OF AIR-CONDITIONING, THEY BECAME SUITABLE FOR COMPUTER SERVER ROOMS, OFFICES, AND PUBLIC-ASSEMBLY ROOMS. CITY PLANNERS ENCOURAGED ARCHITECTS AND BUILDING OWNERS TO PROVIDE PLAZAS AS A MEANS OF EXPANDING OPEN SPACE IN CROWDED CITIES.
NON-STOP INCREASES IN URBAN LAND COSTS HAVE LED TO MORE EFFICIENT USE OF SPACE BY BUILDING OWNERS. THIS INCLUDES NOT ONLY BUILDING UPWARD, BUT ALSO DOWNWARD. WATERPROOFED PLAZAS OVER OCCUPIED UNDERGROUND FACILITIES AND ROOF TERRACES (SOMETIMES CALLED WATERPROOFED DECKS) BECAME POPULAR WAYS OF MAXIMIZING BOTH HORIZONTAL AND VERTICAL SPACE. UNDERGROUND SPACES WERE ONCE LIMITED TO STORAGE AREAS, ACCESS TUNNELS, AND PARKING GARAGES. HOWEVER, WITH THE ADVENT OF AIR-CONDITIONING, THEY BECAME SUITABLE FOR COMPUTER SERVER ROOMS, OFFICES, AND PUBLIC-ASSEMBLY ROOMS. CITY PLANNERS ENCOURAGED ARCHITECTS AND BUILDING OWNERS TO PROVIDE PLAZAS AS A MEANS OF EXPANDING OPEN SPACE IN CROWDED CITIES.
Date
2/2017
2/2017
Author(s)
Justin Henshell
Justin Henshell
Page(s)
44-49
44-49
Source
Construction Specifier
Construction Specifier
Keyword(s)
Built-up bituminous membrane; asphalt became a step down from coal tar pitch; alternative membranes come of age; liquid-applied membranes; single plies.
Built-up bituminous membrane; asphalt became a step down from coal tar pitch; alternative membranes come of age; liquid-applied membranes; single plies.