Lithuania

Summary

Lithuania’s mandatory Technical Regulation of Construction is a performance-based code that requires an energy frame (reference building) calculation to establish the maximum allowable energy consumption of new residential and non-residential buildings. The regulation also sets energy frames for existing buildings undergoing renovation, which are generally 20-30% less stringent. The regulation addresses thermal envelope requirements and energy-using systems within the calculation, including, HVAC, hot water, lighting and bioclimatic design initiatives.

Lithuania has a short history of energy efficiency requirements for buildings, with the first prescriptive requirements introduced in 1994 following assistance from Sweden and Estonia. With the release of the EPBD in 2002, Lithuania quickly went about developing its first performance-based code in 2005, with dynamic provisions including low maximum u-values, thermal bridging linear value requirements, heat recovery considerations, mandatory commissioning and testing of boilers and HVAC systems, air-tightness testing and compulsory training of all energy experts/inspectors.

General Information

Full Title of Code

Technical Regulation of Construction STR 2.01.09:2005

Year of Adoption

2005

Date of Enforcement

Thursday, September 1, 2005

Authority in Charge

Ministry of Environment and the Ministry of Energy.

Remit of Code

Geographical Coverage

Lithuania

Code set at:

National Level

Coverage

Coverage of Building Code:

  • Residential buildings
    • One family
    • Multiple family buildings
  • Commercial buildings
    • Offices
    • Retail and wholesale
    • Hotels
    • Hospitals
    • Educational buildings
  • Public buildings
    • Offices
    • Hospitals
    • Educational buildings
  • All urban buildings

GBPN Climate Classification:

  • Heating Based

Type of Building Code

Type of Building Code:

  • Model code, frame or actual code:
    National Code
  • Performance Codes for New Builds:
    Lithuania’s mandatory Technical Regulation of Construction is a performance-based code that requires an energy frame (reference building) calculation to establish the maximum allowable energy consumption of new residential and non-residential buildings.
  • Energy Declaration:
    EPC
  • Model / reference Building:
    The energy performance efficiency of each building is evaluated solely using the reference building method, that is, a comparison between the normative, the reference and the calculated energy consumption value for each building.

Energy Covered

Basis for Energy Requirements:

  • Overall performance frame:
    Maximum energy demand - The calculation method does not set any requirements for primary energy consumption values in buildings. The energy performance efficiency of each building is evaluated solely using the reference building method, that is, a comparison between the normative, the reference and the calculated energy consumption value for each building. The certification of buildings in Lithuania is based on calculations and building audits, but not on the measurement of energy consumption.

Energy Uses and Functions Covered by the Code:

  • Heating
  • Ventilation
  • Airtightness
  • Thermal bridging
  • Hot water
  • Lighting
  • Design, position & orientation of building
  • Heat recovery
  • Passive solar
  • Passive cooling
  • Natural ventilation
  • Solar protection
  • Daylighting requirements

Enforcement

Enforcement Status of Code:

Mandatory

Type of Enforcement:

  • Local enforcement
  • Third party inspection

On-site Inspections Occur

  • During construction

Certification to Support Enforcement of Code:

  • Energy Performance Certificate support BC
  • Positive labeling for building beyond the minimum BC level
  • Other buildings
  • Inspection of boilers
  • Inspection of HVAC systems

Penalties for Non-compliance:

  • None

Measures Supporting Enforcement:

  • Commissioning requirements
  • Training of Inspectors

Values for New Buildings

Residential and Non-Residential Building

GBPN Climate Classification

Heating based

Coefficient for Comparison of Climate Zones

0.00

MeanMinMax
HDD (°C)4052--
CDD (°C)25--
U-Value (W/m²K)
Roof0.16Roof2-
Wall0.2Wall2-
Floor0.25Floor2-
Window1.6Window2-
Others---
Overall U-Value---
Window1Window2
G Value/SHGC--
Visible Transmission--
Percent--

Other Requirements Set for:

  • Thermal bridge demands
  • Overall Thermal bridge max value:
    ΨN 0.18
  • Ventilation:
    Depends on the type and size of system.
  • Domestic Hot Water COP - Heat Pump:
    Depends on the type and size of system.
  • Value for airtightness:
    For naturally ventilated buildings, maximum n50=3 h-1, for mechanically ventilated buildings, maximum n50=1.5 h-1.
  • Heat Recovery
  • Technical HVAC systems
  • Efficient Lighting

Energy Performance

80.00kwh

Code History and Future Targets

General Process in Setting Requirements:

  • How far in advance are future targets set?:
    2018, 2020
  • Stakeholders are informed of future targets far in advance

Zero Energy Targets:

  • All end uses are not included
  • There is not a realistic roadmap in place:
    Not at this stage.
  • National Target date for nZEB:
    Not at this stage.
  • Special Requirements for public buildings:
    According to the Building Technical Regulation STR 2.01.09:2005, it is required that, in large buildings (public buildings) with a heated area of over 1,000 m2 , such as hotels, administrative, trade, services, restoration, transport, culture, education, health care and buildings destined for recreation, the valid energy performance certificate, less than 10 years old, is displayed at a prominent place, clearly visible to the public.

Multiple set of data:

  • Levels beyond minimum:
    2
  • Year historic or aspirational codes (planned) :
    2020

Supporting Measures

Incentives/Rewards to Encourage People to go beyond Minimum Level?

The National Energy Efficiency Programme for 2006–2010 is an inter-institutional a program providing for organizational, legal, economic, and technological improvement and introduction, applied research, public education and awareness raising measures, aimed at increasing the efficient use of energy resources and energy, as well as the monitoring of their implementation.

Involvement of Stakeholders in the Development of Codes

Yes

Level of Training Provided to Stakeholders Following Implementation of Code?

Yes

Provision of Appropriate Information for General Public

Promotional and informational seminars have been organized for institutions and organizations that were interested. In the first stage of the certification system, information campaigns focused essentially on municipalities, specialists and professionals of the building sector.

Education Systems to Ensure Capacity

Yes

Supporting Labeling Schemes

Yes

Supporting Certification Schemes

Yes

Codes Free to Access?

No