Cyfraddau defnyddio ynni sylfaenol a gwerthoedd perfformiad ffabrig
6. Ar ôl rheoliad 26, mewnosoder—
“Primary energy consumption rates for new buildings
26A. Where a building (other than a dwelling) is erected, it must not exceed the target primary energy consumption rate for the building which has been approved pursuant to regulation 25C(a).
Fabric performance values for new dwellings
26B. Where a dwelling is erected, it must not exceed the target fabric performance values for the dwelling which have been approved pursuant to regulation 25C(b).”