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Limitations for windows and rooflights Building type

Residential buildings*

Industrial and storage buildings

Offices, places of assembly Showrooms, shops

Windows and rooflights with the following U values in W/m2K

5.8 5.8 5.8

5.8

*Note: This category includes hotels and institutional buildings

Aggregate area as % of the area of the exposed walls bounding the building.

Windows & doors

20%

15% 25%

50%

Limitation of the passage of heat through the building fabric

Maximum U values in W/m2K for all building categories

Exposed walls* Exposed floors

Non-exposed floors

Roofs

1.57 1.57 1.97

0.59

*Note:

Exposed walls of bathrooms, sanitary conveniences and utility rooms having an area of 5.6sq.m, or less,

are excluded from this requirement

Rooflights

10% of roof area

2 > Status of the implementation

Certification of buildings

It is envisaged that when the methodologies for assessment of the energy performance of buildings for both residential and non residential buildings are fully developed for heating and for cooling, the minimum requirements that are set by LN 238 of 2006 will be expressed in values that will indicate the energy used and the CO2 emissions produced by the building. An Asset Rating will be used for all new buildings and buildings over 1000 m2 that undergo major renovations. A combination of Asset and Operational Ratings will be used in the case of public service buildings that occupy a useful floor area of over 1000m2. These ratings will be shown as an energy label that classify the buildings on an efficiency scale ranging from A to G - A indicating high energy efficiency, G indicating poor energy efficiency. This label will also list recommendations for improving the energy performance of the certified building.

The draft legislation envisages that when a new building, or a building with a total useful floor area of over 1000m2 that is to undergo major renovation or alterations is designed, an asset rating certificate is produced when submitting an application for development permission - dwellings will need this certificate as from 2nd January 2009 while all other

EPBD Buildings Platform > P075_EN_Malta_March2008

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