definition
strict definition
conversion to passive heating begins
The physical processes of refitting a building to enable passive heating begin.
The conversion of a building or structure to passive heating begins when the first physical alterations take place readying it for passive heating. The conversion process typically involves creation of an airtight shell through low u-value windows, a ventilation system with high heat recovery, and highly rated insulation.
The first physical alterations must be directed toward the building's passive-heating conversion. A proposal or a decision to convert is not itself the physical commencement.
An environmental upgrade can improve energy efficiency without achieving passive heating. This conversion has the more specific objective defined for passive heating and ends with the last physical alterations.
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 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 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.