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where there are different demands for the different building parts. U roof: 0,13 (0,08 in dwellings with direct electrical panels) W/m2,K, U wall 0,18 (0,10)W/m2,K, U floor 0,15 (0,10)W/m2,K, U windows 1.3 (1,1) W/m2,K and U doors 1,3 (1,1) W/m2,K, with demands air tightness, less then 0,6 l/s,m2, at 50 Pa and on heat retention (η<70%) if the building is bigger than 60 m2.

Requirements for new buildings (and major renovations)

The new requirements are mandatory for buildings with building permits requested after 1st of July 2007. The type and level of requirements de- pend on the type of building (residential or non-residential) and cover: › Maximum Heating, Domestic hot water and Cooling and Property elec- tricity requirements per m² of floor area heated to more than 10°C

› Maximum U-value for residential or non-residential buildings including thermal bridges;

› Shading must be considered to lower the need for cooling; › Minimum efficiency and quality requirements for ventilation systems as sfp recommendations.

› The regulations are also applicable to extensions of existing buildings › The requirements also apply to renovated buildings but in the case of buildings with cultural value the demand can be reduced

Residential

One and two family with direct electrical panels

Non residential

Allowed additional energy use due to extra ventilation flow

Table 1. Energy use in Swedish buildings.

South [kWh/m2] 110 75

100 70*(q-0.35)

North [kWh/m2] 130 95

120 90*(q-0.35)

Table 2. General recommendation of Energy efficiency in ventilation sys- tems.

Recommended

Exhaust and supply air with heat recovery

Exhaust and supply air without heat recovery

Exhaust with heat recovery Exhaust

1.5 1.0

0.6

Proof of compliance can be made in two steps: › first when requesting the building permit by asset rating, › followed by operational rating two years after the completion of the building.

Control of the regulation is the responsibility of the client based on a con- trol plan prepared together with a representative from the municipality where the building is located. Compliance with the building regulations can be demonstrated using the quality control procedures issued according to the Planning and Building act (PBL 1987:10).

Periodic certification

In Sweden, a special purpose estate building (public building) is defined in the taxation law and includes buildings owned by private or government bodies where the use is intended for the public use, such as schools, librar- ies, communication buildings. All buildings in a special purpose estate, lar-

EPBD Buildings Platform > P82 Sweden-June2008

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