Names follow the SUEWS YAML specification; click one for its definition in the configuration reference.
albedo | 0.125 CIBSE 2015 source bounds 0.11–0.14 · active within |
emissivity | 0.91 |
thermal_conductivity | 0.23 |
specific_heat | 1000 |
density | 110 |
Applies to: parameters.thermal_conductivity, parameters.specific_heat, parameters.density
Where: Table 3.46, waterproof roof covering row, p. 3-49
Publishes density 110 kg m-3, thermal conductivity 0.23 W m-1 K-1 and specific heat 1000 J kg-1 K-1.
Applies to: parameters.albedo, parameters.emissivity
Where: Table 3.39, bitumen or felt roofing row, p. 3-44
Publishes absorptivity 0.86-0.89 and emissivity 0.91. The complementary albedo interval is 0.11-0.14; stored albedo 0.125 is within the interval and emissivity 0.91 is direct.
Where: Pre-migration Spartacus Material row 36243799
Stores the same 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 waterproof roof covering for the thermal row; the retained display name matches that 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 3.39 supports the stored radiative values either directly, by exact absorptivity complement or as a scalar within a published range. |
| Source | supported CIBSE Guide A is the source for the thermal tuple and radiative evidence. Canonical field-level metadata distinguishes direct publication, exact calculation and a retained scalar selected within a range. issue #870 |
| 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 directly adopted values. Canonical overrides record the exceptional leaves as follows: albedo assumed within 0.11-0.14. |
| Identity | supported Legacy ID 36243799 identifies the retained catalogue row; correcting its source and field-level method metadata does not change the stable path, values or material identity. |
This correction changes provenance metadata only. The source ranges and any absorptivity-to-albedo complement are explicit, so the active scalar is not presented as an exact printed value. The material is used by eight roof construction records. 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: 0.125
ref:
ID: cibse2015
DOI: null
desc: 'source bounds 0.11–0.14 (active: within)'
emissivity:
value: 0.91
ref:
ID: cibse2015
DOI: null
desc: null
thermal_conductivity:
value: 0.23
ref:
ID: cibse2015
DOI: null
desc: null
specific_heat:
value: 1000
ref:
ID: cibse2015
DOI: null
desc: null
density:
value: 110
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