Building regulations - new domestic buildings: identification and assessment of energy standard improvements
Technical analysis to consider the implications of modelling method, dwelling specification and heating technology up key regulated metrics and costs to both the developer and occupier, to represent the emerging building stock in Scotland.
Part of
Footnotes
1 The Table 6.1 correction factor to the SAP TDER was not applied to the HEM modelling as it was not clear if this would be required. Scottish Government may need to consider the appropriateness of such as correction to the more detailed HEM notional dwelling.
2 ASHP manufacturers typically do not provide heat pumps smaller than 3kW due to predicted reheating time for typical cylinder sizes.
3 The number and size of emitters for wet heating systems is directly proportional to the flow temperature of the heating systems. DHN connected dwelling flowing at 55°C around the heating circuit will require fewer and/or smaller radiators relative to a dwelling served by an ASHP flowing at 45°C.
4 Mid Terrace Houses and Blocks of Flats represent 38% of the new build housing stock in Scotland
5 Detached, End of Terrace/Semi-Detached Houses represent 54% of new build housing stock in Scotland
6 A Snapshot in Time: Decarbonisation of Heat in 2023 What it means for net zero – AECOM Sustainable Development Group 2024 ecc27eb3-193f-42d7-9cea-bdbf9bacee1b.pdf
7 Uncontrolled ventilation is defined as wind driven infiltration through ventilators or infiltration due to stack effect caused by temperature differences between inside and outside. Back drafts through fans are not assumed to occur.
Contact
Email: buildingstandards@gov.scot