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Material — Roofing shingle evidence record

albedo0.06
emissivity0.95
thermal_conductivity2
specific_heat753
materialsKotthaus 2014

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.

albedo0.06
emissivity0.95
thermal_conductivity2 unreferenced
specific_heat753 unreferenced
density1013 unreferenced

Provenance evidence

Awaiting sign-off

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

Derivation of an urban materials spectral library through emittance and reflectance spectroscopyParameter source

Applies to: parameters.albedo, parameters.emissivity

Where: Table C.1, sample L003, p. 210

Reports albedo 0.06 and emissivity 0.95 for a black, weathered fibre-cement roofing shingle. The article reports spectral measurements, not the stored thermal tuple.

Apache-Tables User Guide: IES Virtual Environment 6.4Validation

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

Where: Table 6 material rows, p. 19

No Roofing shingle row matches 2/753/1013. Conductivity 2 and specific heat 753 occur for slate, but that row's density is 2700, so it is not provenance for the stored tuple.

SUEWS database pre-migration workbook: database.xlsxLater compilation

Where: Pre-migration Spartacus Material row 36243783

Stores the complete 0.06/0.95/2/753/1013 tuple under placeholder Ref 99240099; this establishes release and migration lineage only.

Assessment findings

Namesupported
Kotthaus sample L003 is a roofing shingle; the historical row preserves the generic label.
Targetsupported
Both evidence items describe material properties.
Valuessupported
Kotthaus reports the exact optical pair 0.06/0.95 for sample L003. The thermal tuple 2/753/1013 is supported only as the exact migrated configuration and is exported as unreferenced and assumed.
Sourcesupported
Kotthaus is the effective source only for albedo and emissivity. Canonical field overrides prevent it from being credited with thermal properties the article does not publish.
issue #278
Placenot applicable
The generic material row makes no observation-place claim.
Representativenessnot applicable
The generic material row makes no site, city or regional evidence-reach claim.
Methodsupported
Measured applies to the two spectral properties; the three thermal leaves are explicitly assumed.
Identitysupported
Legacy ID 36243783, stable path and every parameter value are preserved. Field-level provenance records the mixed evidence without asserting that Kotthaus published the complete tuple.

Scientific note

The absence of one publication containing all five fields is not a blocker once the mixed evidence is represented honestly. Kotthaus supports only the two optical leaves; the three thermal values remain explicit archived assumptions. No value or stable identity changes.

Model-ready fragment

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

albedo:
  value: 0.06
  ref:
    ID: kotthaus2014
    DOI: 10.1016/j.isprsjprs.2014.05.005
    desc: null
emissivity:
  value: 0.95
  ref:
    ID: kotthaus2014
    DOI: 10.1016/j.isprsjprs.2014.05.005
    desc: null
thermal_conductivity:
  value: 2
  ref:
    ID: unreferenced
    DOI: null
    desc: null
specific_heat:
  value: 753
  ref:
    ID: unreferenced
    DOI: null
    desc: null
density:
  value: 1013
  ref:
    ID: unreferenced
    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

Targetmaterial
Schema2026.5 · legacy row 36243783

Used by 1 typology

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