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Table 1

Constant (Uc) and wind dependent (Uv) U-values, the R2 value for the linear regression and the t test results for the slopes (Uv). The p value is <0.05 for all linear regressions performed. Therefore, a significant correlation between the wind speed and the U-values can be assumed.

  NPEast TPEast TPWest Average
Uc [W/m2K] 21.3 23.3 23.2 22.6
Uv [Ws/m3K] 4.7 5.1 5.0 4.9
R2 0.66 0.76 0.65 0.66
t test result t(3673) = 84.1, p < .001 t(3673) = 108.4, p < .001 t(3673) = 82.2, p < .001 t(11023) = 148.1, p < .001

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