Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
albedo | 0.27 CIBSE 2015 |
emissivity | 0.93 |
thermal_conductivity | 1 |
specific_heat | 1000 |
density | 1800 |
Applies to: parameters.thermal_conductivity, parameters.specific_heat, parameters.density
Where: Table 3.46, external render (cement, sand) row, p. 3-49
Publishes density 1800 kg m-3, thermal conductivity 1 W m-1 K-1 and specific heat 1000 J kg-1 K-1.
Applies to: parameters.albedo, parameters.emissivity
Where: Table 3.40, cement mortar, screed row, p. 3-45
Publishes absorptivity 0.73 and emissivity 0.93. The stored emissivity is direct, while the stored albedo is the exact complement 1 - 0.73 = 0.27.
Where: Pre-migration Spartacus Material row 36248192
Stores the same complete tuple under MAPSECC Ref 90240069; the root spreadsheet contains the same row, excluding YAML migration as the cause of the attribution.
| Name | supported Guide A names external render (cement, sand), exactly matching the retained identity. |
|---|---|
| Target | supported The source tables and historical catalogue describe thermophysical and radiative material properties. |
| Values | supported Table 3.46 publishes the exact thermal tuple; Table 3.40 publishes emissivity 0.93 and absorptivity 0.73, whose exact complement is the stored albedo 0.27. |
| Source | supported CIBSE Guide A is the direct source for the thermal values, emissivity and absorptivity input. The historical catalogue attributed this row to MAPSECC, but the MAPSECC author clarified that material values should cite CIBSE and that Hertwig et al. should be cited for the UK typologies instead. issue #857 |
| 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 is the record-level method for the directly adopted values. The canonical albedo override records that 0.27 is calculated from CIBSE absorptivity rather than printed as albedo. |
| Identity | supported Legacy ID 36248192 identifies the retained catalogue row; correcting its source and method metadata does not change the stable record path, its values or its material identity. |
This correction changes provenance metadata only. Every stored value is supported by CIBSE, with albedo explicitly identified as a deterministic conversion rather than a directly printed value. The material is unlinked from any current construction record. The stable record path remains unchanged because paths are database identities, not citations.
Paste under material in a SUEWS YAML configuration; every value carries its citation.
albedo:
value: 0.27
ref:
ID: cibse2015
DOI: null
desc: null
emissivity:
value: 0.93
ref:
ID: cibse2015
DOI: null
desc: null
thermal_conductivity:
value: 1
ref:
ID: cibse2015
DOI: null
desc: null
specific_heat:
value: 1000
ref:
ID: cibse2015
DOI: null
desc: null
density:
value: 1800
ref:
ID: cibse2015
DOI: null
desc: null
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