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Passive Houses allow for heating energy savings of up to 90% compared with typical central European buildings.

Detail initial data for energy calculations (PHPP2007). Exterior envelope U-values:

External wall: U-value 0,090 W/(m2*K), insulation layer 340mm + 50mm + 25mm, wind protection board [Isover RKL-31, ╬╗=0,031 W/(m*K)].

Floor on ground: U-value 0,120 W/(m2*K), insulation layer 300mm.

Roof: U-value 0,060 W/(m2*K), insulation layer 300mm + 300mm, bearing construction Steico I beams. Construction thickness 628mm.