definition
strict definition
window replacement begins
Removal of old windows begins in preparation for installation of new windows.
Window replacement in a building or structure begins at the moment when the first old window is removed as part of a continuous process to replace the majority of existing windows with newer ones. This process is completed when window replacement ends.
The first removed window marks the beginning of a continuous project intended to replace a majority of existing windows. Ordering replacements does not itself remove a window.
Window replacement ends records installation of the last new window in that project. Isolated replacement of a small number of windows is outside the stated majority-based scope.
Related definitions
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abrasive blasting begins
The first application of high-pressure cleaning streams to a facade in a process covering most or all of it. -
abrasive blasting ends
The final high-pressure cleaning application to a facade after all or a majority of its surface has been treated. -
conversion to passive heating begins
The physical processes of refitting a building to enable passive heating begin. -
conversion to passive heating ends
Completion of the physical alterations that refit a building or structure for passive heating. -
elevator replacement begins
Removal of at least one elevator begins in preparation for its replacement. -
elevator replacement ends
The process of installing new elevators is completed, and the new elevators are operational. -
environmental upgrade begins
The start of work on a project intended to improve a structure's energy efficiency. -
environmental upgrade ends
Completion of work on a project intended to improve a structure's energy efficiency. -
escalator replacement begins
Removal of at least one escalator begins in preparation for its replacement. -
escalator replacement ends
The process of installing new escalators is completed, and the new escalators are operational. -
facade renovation begins
The start of major structural improvements or industrial-level cleaning of a retained facade. -
facade renovation ends
Completion of major structural improvements or industrial-level cleaning of a retained facade. -
facade repainting begins
The first application of a new coat of paint over most of an existing facade, whether or not its color changes. -
facade repainting ends
Completion of a new coat of paint over most of an existing facade, whether or not its color changes. -
facade scaffolding installation begins
Erection begins on a temporary support structure for workers over at least part of the facade. -
facade scaffolding installation ends
Erection is completed on a temporary support structure for workers over at least part of the facade. -
facade scaffolding removal begins
Dismantling begins on a temporary support structure for workers over at least part of the facade. -
facade scaffolding removal ends
Dismantling is completed on a temporary support structure for workers over at least part of the facade. -
floorplate removed
Removal of part or all of an internal floorplate is completed, creating an open interior space. -
gutting begins
Substantial demolition of a built object's non-structural components begins. -
gutting ends
Substantial demolition of a built object's non-structural components is finished or halted. -
hvac renewal begins
Replacement or major improvements begin in a structure's heating, ventilation, and air conditioning systems. -
hvac renewal ends
Completion of replacement or significant upgrading of any or all heating, ventilation, and air conditioning systems. -
lobby renovation begins
The start of construction work for a major design change to common space near a building's main entrance. -
lobby renovation ends
Completion of construction work realizing a major design change to common space near a building's main entrance. -
new floor added internally
An additional floorplate is completed, or an existing one extended, into an open space on the interior of a building. -
partial renovation begins
The start of intensive renovation affecting at least 10% but less than all of a structure's space, excluding routine fit-out. -
partial renovation ends
Completion of intensive renovation affecting at least 10% but less than all of a structure's space, excluding routine fit-out. -
public area renovation begins
Major physical changes to various parts of the public areas of a building's interior space begin. -
public area renovation ends
Major physical changes to various parts of the public areas of a building's interior space are completed. -
recladding begins
Removal of the first sections of an existing facade in preparation for installation of a replacement facade. -
recladding ends
Completion of the last sections of a replacement facade, finishing the recladding of an existing structure. -
relocation to a new site
The moment an object arrives at its new site after completing the journey from its former location. -
removal from former site
The moment an object leaves its former site and begins its journey toward a new location. -
restoration begins
Work begins on a process to return an object to its original or former appearance. -
restoration ends
Work is completed on a process to return an object to its original or former appearance. -
roof renovation begins
The first work in a roof-focused project to replace, overlay, stabilize, reconstruct, or otherwise improve the roof. -
roof renovation ends
Completion of a roof-focused project to replace, overlay, stabilize, reconstruct, or otherwise improve the roof. -
total renovation begins
The start of major physical upgrades across all major internal spaces, including tenant and common areas. -
total renovation ends
Completion of major physical upgrades across all major internal spaces, including tenant and common areas. -
window replacement ends
Installation of new windows is completed, replacing a majority of older windows.