Oireachtas Joint and Select Committees
Tuesday, 14 February 2023
Joint Oireachtas Committee on Climate Action
Building Reform Regulations: Department of Housing, Local Government and Heritage
Mr. Se?n Armstrong:
The B2 target is set using the cost-optimal calculation, which is the best energy performance for the lowest life cycle of cost. One of the positive things about the B2 upgrade is that where it is technically, functionally and economically feasible and practical, it can be done while the tenants remain in situin the dwelling.