definition
strict definition
hvac renewal begins
Replacement or major improvements begin in a structure's heating, ventilation, and air conditioning systems.
Renewal of HVAC systems begins at the onset of any replacement or significant upgrade of any or all of its heating, ventilation, and air conditioning systems.
The work can replace or significantly upgrade one of the named systems without renewing all three. Minor routine attention alone is outside the stated significant-upgrade scope.
HVAC renewal ends records completion of the replacement or upgrade. A wider renovation can have its own start and end dates beyond this system-specific work.
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 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 begins
Removal of old windows begins in preparation for installation of new windows. -
window replacement ends
Installation of new windows is completed, replacing a majority of older windows.