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Table 2 U-values (W/(m2K))

From: Estimating the savings potential of occupancy-based heating strategies

Component

Low U-Values

High U-Values

 

(new building)

(old building)

Walls, ceiling against outside

0.21

1.5

Ground plate

0.21

1.0

Roof

0.20

1.0

Windows

1.60

4.3

Doors

1.60

1.8