Material · SUEWS parameter database

browse · records/materials/generic--unreferenced--slate-tiles.yml

Material — Slate Tiles evidence record

albedo0.25

emissivity0.9

thermal_conductivity2

specific_heat753

materials Integrated Environmental Solutions Limited 2011

Parameters

Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.

Labelled fields override the record-level citation or scope; unlabelled fields use the record metadata.

`albedo`	0.25 unreferenced
`emissivity`	0.9 unreferenced
`thermal_conductivity`	2
`specific_heat`	753
`density`	2700

Provenance evidence

Awaiting sign-off

Published value · assessed by provenance-audit · 2026-08-26. Agent assessment is evidence preparation, not human verification.

Apache-Tables User Guide: IES Virtual Environment 6.4Parameter source

Applies to: parameters.thermal_conductivity, parameters.specific_heat, parameters.density

Where: Table 6, Slate Tiles row, p. 19

Publishes thermal conductivity 2.000 W m-1 K-1, specific heat 753 J kg-1 K-1 and density 2700 kg m-3. Table 14 instead implies grey-slate albedo 0.1-0.2, not the stored 0.25.

SUEWS database pre-migration workbook: database.xlsxLater compilation

Where: Pre-migration Spartacus Material row 36248180

Stores the complete tuple under placeholder Ref 99240099; this establishes migration lineage only.

Assessment findings

Name	supported The IES table and historical catalogue both identify the material as Slate Tiles.
Target	supported Both sources describe thermophysical material properties used by a building-energy model.
Values	supported IES Table 6 publishes the exact thermal tuple 2.0/753/2700. The optical pair 0.25/0.90 is retained from the migrated row only and is explicitly exported as unreferenced and assumed.
Source	supported IES is the effective source only for the three thermal leaves; field-level metadata prevents that citation from being extended to the unsupported optical pair. issue #277
Place	not applicable The generic material row makes no observation-place claim.
Representativeness	not applicable The generic material row makes no site, city or regional evidence-reach claim.
Method	supported Literature applies to the three IES-supported thermal leaves; both optical leaves are assumed.
Identity	supported Legacy ID 36248180 preserves the catalogue identity; no path or value changes.

Scientific note

Field-level provenance preserves the exact thermal evidence without treating the absent optical source as a blocker. The optical values remain explicit unreferenced assumptions; no generic slate range is substituted and no parameter value or stable identity changes.

Model-ready fragment

Paste under material in a SUEWS YAML configuration; every value carries its citation.

albedo:
  value: 0.25
  ref:
    ID: unreferenced
    DOI: null
    desc: null
emissivity:
  value: 0.9
  ref:
    ID: unreferenced
    DOI: null
    desc: null
thermal_conductivity:
  value: 2
  ref:
    ID: ies2011-apache-tables
    DOI: null
    desc: null
specific_heat:
  value: 753
  ref:
    ID: ies2011-apache-tables
    DOI: null
    desc: null
density:
  value: 2700
  ref:
    ID: ies2011-apache-tables
    DOI: null
    desc: null

Evidence review

Awaiting sign-offSign off evidence on GitHub

Raises a prefilled sign-off issue. CI accepts it only when the issue author is in the verifier registry and the evidence revision is still current.

Review procedure

Record metadata

SourceIntegrated Environmental Solutions Limited (2011)

Targetmaterial

Schema2026.5 · legacy row 36248180

View source Propose a change Duplicate as a new record Report an issue