Section 7 of 9
PART VI — Circular Materials, Components & Recovery Flows
Stable section ID: S05-CON-013-SECTION-7 · 520 content blocks
Circular Value Hierarchy
System05 shall establish a Circular Value Hierarchy that prioritizes retention of functional, technical, economic, and environmental value.
The preferred hierarchy shall generally be:
- Avoid unnecessary construction and material use.
- Preserve and maintain existing buildings.
- Adapt or reconfigure existing spaces.
- Extend asset service life.
- Maintain and repair components.
- Replace only failed or obsolete subcomponents.
- Directly reuse complete Cartridges and components.
- Refurbish and recondition.
- Remanufacture.
- Repurpose or cascade into a lower-demand application.
- Recover materials through high-quality recycling.
- Recover remaining value where environmentally justified.
- Dispose of residual waste safely.
The highest hierarchical option shall not be selected automatically if it creates unacceptable safety, health, environmental, transportation, or economic consequences.
Circular decisions shall consider:
- Current condition.
- Remaining service life.
- Technical performance.
- Evidence quality.
- Recovery energy.
- Transport.
- Contamination.
- Market demand.
- Compatibility.
- Regulatory acceptance.
- Future recoverability.
Long-life Nodes should remain in service across multiple Cartridge and building cycles where verified condition permits. Circularity claims shall reflect actual recovery outcomes rather than only theoretical design potential.
Asset and Material Inventory
System05 shall maintain an Asset and Material Inventory representing the physical composition and recoverable resources of the building.
The Inventory may include:
- Buildings and spatial assemblies.
- Structural systems.
- Nodes.
- Cartridges.
- Interfaces.
- Components.
- Subcomponents.
- Materials.
- Coatings and treatments.
- Fasteners and seals.
- Sensors and electronics.
- Consumables.
- Hazardous substances.
Each inventory record should identify, as applicable:
- Unique identity.
- Asset type.
- Manufacturer.
- Version.
- Location.
- Quantity.
- Dimensions and mass.
- Material composition.
- Installation date.
- Service-life class.
- Current condition.
- Ownership or custodianship.
- Interface relationships.
- Criticality.
- Maintenance requirements.
- Recovery potential.
- Passport reference.
- Evidence confidence.
Inventory detail shall correspond to lifecycle value and risk. High-value, safety-critical, hazardous, or reusable assets may require individual identity, while homogeneous low-risk materials may be recorded by batch or quantity.
Inventory changes caused by installation, replacement, repair, contamination, relocation, or recovery shall be recorded. The inventory shall reflect the verified physical building rather than only the original bill of materials.
Material Passport Architecture
System05 shall establish a Material Passport Architecture that preserves the information required to use, maintain, separate, recover, and responsibly manage materials.
A Material Passport may contain:
- Material identity and classification.
- Manufacturer and production location.
- Source and feedstock.
- Batch or lot.
- Chemical and physical composition.
- Recycled or recovered content.
- Relevant mechanical and environmental properties.
- Coatings, adhesives, treatments, and additives.
- Hazard and toxicity information.
- Exposure limitations.
- Durability assumptions.
- Repair methods.
- Joining and separation methods.
- Contamination risks.
- Reuse restrictions.
- Recycling pathway.
- Biological-cycle eligibility where applicable.
- Disposal requirements.
- Supporting declarations, tests, and certifications.
Passport information shall distinguish verified product-specific data from generic estimates or manufacturer declarations.
Material Passports shall be machine-readable while remaining accessible to human users without dependence on a single proprietary platform.
Passport records shall be version-controlled. Later coatings, repairs, contamination, weathering, or processing shall be added without erasing the material’s original identity and history.
A passport shall support decisions but shall not by itself prove the current physical condition of an installed or recovered material.
Component and Cartridge Passports
Each significant reusable Component and Cartridge shall have a passport connecting its design definition, physical identity, configuration, service history, and recovery status.
The passport may include:
- Unique Component or Cartridge ID.
- Type and functional classification.
- Manufacturer and manufacturing facility.
- Model and version.
- Date of manufacture.
- Geometry and mass.
- Material composition.
- Interface specifications.
- Structural and functional ratings.
- Environmental Exposure Profile.
- Service-life assumptions.
- Installation requirements.
- Inspection and maintenance procedures.
- Repair and refurbishment methods.
- Disassembly and handling instructions.
- Software and firmware dependencies.
- Certification and conformance status.
- Installation and removal history.
- Damage and overload events.
- Current condition.
- Reuse and requalification status.
Passports shall remain connected to the asset after removal from the original building. Replacement of a subcomponent shall update the passport rather than create a false representation that the complete Cartridge remains unchanged.
Physical labels, engraved identifiers, barcodes, QR codes, or other machine-readable methods should allow recovery teams to retrieve the passport even after long service periods.
- Loss of digital access shall not erase essential identification, hazard, release, or handling information.
- Source, Composition and Provenance Records
System05 shall preserve Source, Composition and Provenance Records for materials and assets where origin affects safety, quality, sustainability, legality, or recovery potential.
Provenance may include:
- Raw-material source.
- Recovered-material source.
- Supplier.
- Manufacturing facility.
- Production process.
- Batch or lot.
- Chain of custody.
- Transport and storage.
- Quality-control results.
- Certification.
- Installation organization.
- Previous buildings or applications.
- Repairs and modifications.
- Exposure and damage history.
- Recovery organization.
- Ownership transfer.
- Provenance records shall distinguish direct evidence from declarations, estimates, and inferred relationships.
Mixing of materials from different sources shall retain appropriate batch and composition information. Recycled content shall not be reported without a defined calculation basis and evidence.
Where source information is incomplete, the asset shall be marked with an appropriate uncertainty classification. Missing provenance may restrict reuse in high-consequence applications even where visual condition appears acceptable.
Provenance information shall be protected against unauthorized alteration while remaining transferable across manufacturers, owners, platforms, and recovery organizations.
Reuse Potential Classification
System05 shall classify the potential of assets for continued use, reuse, refurbishment, remanufacturing, repurposing, material recovery, or disposal.
Classification shall consider:
- Safety criticality.
- Current condition.
- Damage history.
- Exposure.
- Remaining service life.
- Material degradation.
- Interface compatibility.
- Dimensional accuracy.
- Obsolescence.
- Inspection accessibility.
- Evidence completeness.
- Requalification requirements.
- Market demand.
- Transport and processing impacts.
- Hazardous content.
Typical classes may include:
- Eligible for continued service.
- Eligible for direct reuse after identity and condition verification.
- Eligible for reuse after testing or requalification.
- Suitable for repair or refurbishment.
- Suitable for remanufacturing.
- Suitable for repurposing or cascaded use.
- Suitable only for material recovery.
- Restricted due to contamination or uncertainty.
- Required to undergo controlled disposal.
- Status unknown pending assessment.
Reuse potential shall not be treated as permanent. Condition, regulation, technology, damage, and available evidence may change the classification.
The classification shall identify who assigned it, the evidence used, limitations, intended application, expiration or review date, and required next action.
- Disassembly Sequence Planning
- System05 shall define Disassembly Sequence Plans before physical recovery begins.
A plan shall address:
- Current configuration.
- Actual load paths.
- Structural unloading.
- Temporary support.
- Utility and stored-energy isolation.
- Hazardous materials.
- Connection locations.
- Locked and release states.
- Required tools.
- Human and robotic access.
- Lifting and handling.
- Weather protection.
- Component stability.
- Sorting and storage.
- Evidence collection.
- Emergency stop conditions.
Disassembly sequence shall generally remove nonstructural, service, and short-life Cartridges before disturbing long-life Nodes and primary structural systems.
The sequence shall account for changes made after original construction. Original drawings shall not be treated as sufficient where later repair, damage, retrofit, or undocumented alteration may have changed the configuration.
Each release step shall define prerequisites, responsible authority, verification, and resulting temporary state.
Deviation from an approved sequence shall require assessment where it could affect safety, recoverable value, adjacent assets, or later operations.
Selective Deconstruction
System05 shall prefer Selective Deconstruction to uncontrolled demolition where safe and technically practical.
Selective deconstruction shall separate buildings into recoverable assets and material flows according to planned sequences.
The process may include:
- Pre-deconstruction survey.
- Hazard identification.
- Utility isolation.
- Removal of furnishings and equipment.
- Removal of service Cartridges.
- Recovery of enclosure and interior components.
- Structural unloading.
- Recovery of structural members and Nodes.
- Material separation.
- Evidence recording.
- Site restoration.
Deconstruction planning shall identify target recovery rates, priority assets, handling requirements, storage capacity, destination, and responsible organizations.
Rapid demolition may be necessary in immediate life-safety conditions. Even then, available hazardous-material, identity, and configuration information should support safer work and later sorting.
Recovery performance shall report actual outcomes, including direct reuse, refurbishment, remanufacturing, recycling, residual waste, and damage during removal.
Component Recovery
Component Recovery shall preserve the identity, condition, geometry, Interfaces, and future value of assets removed from service.
Recovery procedures shall address:
- Verification of asset identity.
- Condition before release.
- Safe unloading.
- Controlled Interface release.
- Protection of Node and Cartridge surfaces.
- Handling and lifting points.
- Prevention of impact and distortion.
- Environmental protection.
- Contamination control.
- Label preservation.
- Temporary packaging.
- Transport.
- Quarantine where condition is uncertain.
- Transfer of digital records.
Recovered assets shall not be mixed indiscriminately with demolition debris if reuse or refurbishment remains practical.
Removal damage shall be recorded and associated with the asset. Damage caused during recovery shall not be concealed through cleaning or refinishing before inspection.
Recovery organizations shall preserve traceability between the physical asset and its passport. Where identity cannot be confirmed, the asset shall receive a controlled provisional identity and restricted status pending assessment.
Inspection of Recovered Assets
Recovered assets shall undergo inspection appropriate to their criticality, previous service, exposure, intended use, and available evidence.
Inspection may include:
- Identity verification.
- Visual examination.
- Cleaning sufficient for assessment.
- Dimensional measurement.
- Connection-surface inspection.
- Coating and corrosion assessment.
- Crack detection.
- Moisture measurement.
- Material verification.
- Electrical testing.
- Sensor and control testing.
- Functional cycling.
- Nondestructive testing.
- Sampling or destructive testing where justified.
- Comparison with manufacturing and service records.
Inspection shall identify:
- Observed condition.
- Damage.
- Deformation.
- Wear.
- Contamination.
- Missing parts.
- Unauthorized modification.
- Evidence limitations.
- Required repair.
- Suitability for further testing.
- Recommended recovery pathway.
Absence of visible damage shall not establish fitness for reuse where concealed deterioration, fatigue, overload, fire, chemical exposure, or loss of material properties is possible.
Inspection evidence shall remain attached to the asset’s identity and shall identify the method, date, inspector, calibration status, configuration, and acceptance criteria.
Requalification for Reuse
Requalification shall determine whether a recovered asset satisfies the requirements of a declared future application.
Requalification may require:
- Verification of identity and provenance.
- Review of original design basis.
- Review of service and damage history.
- Condition inspection.
- Dimensional verification.
- Material testing.
- Structural or functional testing.
- Interface compatibility assessment.
- Remaining-life evaluation.
- Environmental suitability.
- Regulatory review.
- Repair or refurbishment.
- Updated certification.
- Assignment of operating limitations.
Requalification requirements shall correspond to consequence. A noncritical finish Cartridge may require simple inspection, while a structural Node may require engineering analysis, nondestructive testing, proof testing, or third-party certification.
The intended new use shall be declared. Approval for one application shall not automatically establish suitability for a more demanding application.
Requalification shall produce a documented outcome such as:
- Approved for equivalent service.
- Approved for reduced-demand service.
- Approved with limitations or monitoring.
- Approved after specified repair.
- Deferred pending further evidence.
- Rejected for component reuse.
- Redirected to material recovery or disposal.
The requalified configuration shall become a new controlled lifecycle baseline without erasing previous service history.
Direct Component Reuse
Direct Component Reuse shall place a recovered asset into a new application without substantial physical transformation.
Direct reuse may be permitted when:
- Identity is confirmed.
- Condition is acceptable.
- Required provenance is available.
- Interfaces remain compatible.
- Service limits have not been exceeded.
- No prohibited damage or contamination exists.
- Remaining life is adequate.
- Regulatory requirements are satisfied.
- Installation and commissioning procedures are available.
Cleaning, routine maintenance, replacement of consumables, or minor preparation may occur without changing the classification to refurbishment, provided the asset’s essential configuration and performance remain unchanged.
Direct reuse shall preserve the original asset identity and service history. A new installation event, location, adjacent Interfaces, owner, and commissioning record shall be added.
Used assets shall not be represented as new. Their status, limitations, warranty, and evidence shall be communicated to the receiving party.
Direct reuse should be prioritized when it produces greater whole-life value than more intensive processing and when technical confidence is sufficient.
Repair and Refurbishment for Reuse
Recovered assets that do not qualify for direct reuse may undergo repair or refurbishment to restore them to a declared condition.
Activities may include:
- Cleaning and decontamination.
- Removal of damaged finishes.
- Corrosion treatment.
- Crack or surface repair.
- Replacement of seals and wear elements.
- Fastener replacement.
- Coating renewal.
- Dimensional correction.
- Sensor replacement.
- Control-module upgrade.
- Recalibration.
- Functional testing.
Repair and refurbishment shall use defined procedures, compatible materials, qualified personnel, and acceptance criteria.
The process shall identify whether performance has been:
- Restored to the original requirement.
- Restored with limitations.
- Improved beyond the original configuration.
- Adapted for a different application.
Refurbishment shall not erase evidence of previous use or unresolved uncertainty. Replaced parts, altered materials, new limitations, inspection results, and responsible organizations shall be recorded.
- Following refurbishment, the asset shall undergo appropriate requalification before release for reuse.
- Remanufacturing
Remanufacturing shall return a used component or Cartridge through a controlled manufacturing process to a defined and warranted performance condition.
Remanufacturing may include:
- Complete disassembly.
- Cleaning.
- Detailed inspection.
- Replacement of required parts.
- Restoration of critical dimensions.
- Surface reprocessing.
- Material replacement.
- Hardware or electronics upgrade.
- Reassembly.
- Calibration.
- Factory testing.
- Certification.
- Quality-controlled release.
The remanufacturer shall define:
- Accepted input condition.
- Required processing.
- Replacement criteria.
- Final specification.
- Test requirements.
- Performance commitment.
- Warranty.
- New and retained identity relationships.
- Remaining limitations.
- Recovery of rejected parts.
A remanufactured asset may receive a new configuration version while retaining traceability to its original identity and service history.
Remanufacturing shall not be used as a label for simple cleaning or undocumented repair. It requires a repeatable process and verified release against a declared specification.
- Repurposing and Cascaded Use
- Repurposing shall assign an asset or material to a function different from its original intended use.
Cascaded use may place an asset into a progressively lower-demand application when it no longer qualifies for its previous function but retains useful value.
Repurposing decisions shall evaluate:
- Material and component properties.
- Previous exposure.
- Damage and contamination.
- New load and service conditions.
- Fire and health performance.
- Geometry.
- Interface modification.
- Durability.
- Maintenance.
- Regulatory acceptance.
- Future recovery.
A creative new use shall not bypass engineering verification. Products designed for nonstructural service shall not be used structurally without an appropriate design basis and authorization.
Modifications shall be recorded, including cutting, drilling, coating, combining, or removal of original Interfaces.
Repurposed assets may receive a new functional classification and configuration while retaining provenance to the original asset.
- Cascaded use should preserve future separability and material recovery where practical.
- Recycling and Material Recovery
System05 shall use recycling when complete-asset reuse, refurbishment, remanufacturing, or repurposing is not technically or environmentally preferable.
Recycling planning shall consider:
- Material composition.
- Separation requirements.
- Contamination.
- Coatings and adhesives.
- Hazardous constituents.
- Collection and transport.
- Processing energy.
- Recovery yield.
- Quality of recovered material.
- Displacement of primary material.
- Market availability.
- Residual waste.
Closed-loop or equivalent-quality recovery should be preferred where practical. Downcycling shall be identified separately from recycling that preserves material performance.
Recyclability claims shall reflect available regional collection and processing infrastructure. A theoretically recyclable material shall not be reported as recovered without evidence of an actual viable pathway.
Design shall support material recovery through:
- Material identification.
- Separable layers.
- Compatible material combinations.
- Removable fasteners.
- Reduced contamination.
- Declared additives.
- Defined separation zones.
- Recovery instructions.
Recycling outcomes shall record input quantity, recovered quantity, process, destination, residuals, and evidence confidence where significant.
Regenerative and Biological Material Cycles
System05 may use regenerative and biological material cycles where materials can be safely renewed, returned to ecological systems, or managed through verified biological processes.
Applicable materials may include responsibly sourced:
- Timber.
- Bamboo.
- Agricultural fibers.
- Cork.
- Cellulose.
- Natural-fiber composites.
- Other renewable biological resources.
Evaluation shall consider:
- Rate and method of regeneration.
- Land use.
- Biodiversity.
- Soil and water effects.
- Fertilizer and chemical inputs.
- Harvesting practices.
- Chain of custody.
- Durability.
- Fire performance.
- Moisture and biological degradation.
- Treatments and adhesives.
- End-of-life separability.
- Actual biological recovery pathway.
Biological origin shall not automatically establish sustainability or compostability. Preservatives, coatings, resins, contamination, and mixed-material construction may prevent safe return to a biological cycle.
Long-life use may provide greater value than rapid biological processing. Renewable materials should therefore be maintained, reused, and cascaded before controlled biological recovery where practical.
Claims of regeneration, biodegradation, or compostability shall state the required environmental and processing conditions.
Reverse Logistics and Take-Back Systems
System05 shall support Reverse Logistics for returning removed assets, packaging, surplus materials, and recoverable resources to appropriate reuse, refurbishment, remanufacturing, recycling, or treatment facilities.
Reverse-logistics planning shall address:
- Collection responsibility.
- Ownership transfer.
- Asset identity.
- Condition documentation.
- Packaging.
- Temporary storage.
- Consolidation.
- Transport.
- Chain of custody.
- Hazard controls.
- Destination verification.
- Financial responsibility.
- Data transfer.
- Failed-delivery or rejected-asset procedures.
Manufacturers may establish take-back systems for Nodes, Cartridges, electronics, batteries, packaging, or specialized materials.
Take-back commitments shall define:
- Eligible products.
- Geographic coverage.
- Acceptance conditions.
- Duration of commitment.
- Collection process.
- Cost allocation.
- Processing pathway.
- Data and privacy requirements.
- Outcome reporting.
- Contingency if the original manufacturer no longer operates.
- Forward delivery and reverse collection should be coordinated where this reduces empty transport and handling.
Transfer to a take-back provider shall not by itself establish circular recovery. The verified final pathway shall remain distinguishable from collection intent.
Residual Waste and Final Disposal
Materials and assets that cannot be safely or reasonably maintained, reused, refurbished, remanufactured, repurposed, recycled, or biologically recovered shall enter a controlled residual-waste pathway.
Residual waste may include:
- Hazardous materials.
- Contaminated components.
- Inseparable mixed materials.
- Severely damaged assets.
- Degraded materials.
- Fire- or chemical-exposed components.
- Processing residues.
- Nonrecoverable coatings and adhesives.
- Obsolete electronics.
- Materials lacking a safe market or treatment pathway.
Final-disposal decisions shall consider:
- Hazard classification.
- Required treatment.
- Worker and community exposure.
- Transport.
- Containment.
- Leachate and emissions.
- Long-term liability.
- Legal requirements.
- Available alternative pathways.
Disposal shall not be concealed within recycling totals. Incineration, energy recovery, landfill, hazardous-waste treatment, and export shall be reported as distinct outcomes.
Asset identities may be closed only after final disposition is documented. Safety-critical hazard information shall remain available where future responsibility or environmental monitoring may continue.
Residual-waste patterns shall inform redesign, material substitution, separability improvements, supplier requirements, and future procurement.
Final Circular Flow and Recovery Model
The Final Circular Flow and Recovery Model establishes a traceable system for preserving buildings, components, materials, information, and value across repeated lifecycles.
The model requires that:
- Circularity begins with avoiding unnecessary demand.
- Existing buildings and long-life assets are preserved where practical.
- Nodes remain long-life platform assets across multiple configurations.
- Shorter-life functions are concentrated in replaceable Cartridges.
- Every significant asset is represented in an Asset and Material Inventory.
- Material, Component, and Cartridge Passports preserve essential information.
- Source, composition, and provenance remain traceable.
- Reuse potential is classified using condition, evidence, compatibility, and risk.
- Disassembly is planned as an engineering sequence.
- Selective deconstruction protects recoverable value.
- Recovered components retain identity and service history.
- Inspection does not confuse visible appearance with verified performance.
- Requalification corresponds to the consequence of the intended new use.
- Direct reuse is prioritized where sufficient confidence exists.
- Repair and refurbishment restore assets to declared conditions.
- Remanufacturing follows controlled manufacturing and release processes.
- Repurposing remains subject to technical verification.
- Recycling is used after higher-value recovery options are evaluated.
- Biological cycles require verified safe and regenerative pathways.
- Reverse logistics connects removal to actual recovery destinations.
- Residual waste and final disposal remain transparent.
- Physical recovery events update the Building BIOS, passports, and lifecycle digital thread.
- Circular claims are based on verified outcomes rather than theoretical potential.
Through this model, System05 replaces the conventional linear sequence of construction, use, demolition, and disposal with a controlled network of continued service, renewal, transfer, recovery, and reintegration.