Applicable Building Type(s)

New residential, Existing residential

Policy Requirement Level


Policy Sequence


Development Authority: Ministry of Economy and Employment

Implementation Authority: Engineers, architects

Verification Authority: Agência para a Energia (ADENE), Portuguese Energy Agency

Enforcement Authority: Portuguese Directorate General for Energy and Geology (DGEG)

Prescriptive Compliance path


Energy Requirements:


U-Values (W/m2.K)FloorRoofWallsWindows
Climate zone W1 0.5 0.5 0.7 4.3
Climate zone W2 0.45 0.45 0.6 3.3
Climate zone W3 0.4 0.4 0.5 3.3

Air Leakage

Minimum flow rate of 0.6 air changes per hour (ach)

Renewable Energy

Included in total energy use

Compliance Softwares:

End-uses considered:

Space cooling, Space heating, Water heating, Ventilation

Performance Compliance path

Primary energy consumption of 46 to 56 kWh/m2/year or 125 to 203 kWh/m2/year according to climate zone

Energy Requirements:



Climate zones