Core Rules for Creation and Demolition Timestamps
Precise assignment of Phase Created and Phase Removed parameters ensures that every architectural object reflects its true lifecycle across existing, altered, and proposed conditions without scheduling collisions or quantity errors.
01 Logical Framework for Phase Parameters
Every building component inside a multi-phase BIM environment requires two mandatory temporal attributes: the phase in which it came into existence and the phase in which it ceased to exist. When an element is labeled as existing, its creation phase points to the baseline survey state, while elements introduced in later contracts carry future creation dates.
Assigning an improper removal phase causes downstream schedule contamination, resulting in ghost quantities in bill of materials takeoffs and missing structural clearances on active site plans. Standardized naming and validation checklists eliminate ambiguity during multi-disciplinary handoffs.
The Immutable Temporal Boundary Rule
An element cannot have a Phase Removed that occurs prior to or simultaneously with its Phase Created. Elements intended to persist indefinitely must carry a Phase Removed value of 'None' rather than being left unassigned or populated with dummy dates.
Parameter Verification Checklist
- Verify that all legacy structure geometry is assigned to the 'Existing Baseline' creation phase.
- Ensure demolished partitions carry Phase Removed matching the active demolition contract.
- Confirm retained and relocated equipment features updated Phase Created attributes for new placement.
- Check that temporary shoring elements are assigned matching creation and removal phases in interim sequences.
04 Frequently Asked Questions
Need Guidance on Phasing Rules for Complex Renovation?
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05 Related Documentation
Defining Existing Conditions in BIM
Explore best practices for surveying, capturing, and establishing verified baseline geometry prior to renovation phasing.
Documenting Demolition vs Removal
Critical differentiators between permanent structural demolition and salvaging elements for off-site refurbishment.