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Snow load on a roof

Snow load on a pitched roof from the characteristic ground snow load, shape, exposure and thermal coefficients. Reference: EN 1991-1-3 5.2, Table 5.2.

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# Inputs
s_k := 0.5 kPa
alpha_r := 22 deg
C_e := 1.0
C_t := 1.0
# Roof pitch between 0 and 30 degrees: shape coefficient 0.8.
mu_1 := 0.8

# Load
s_roof := mu_1*C_e*C_t*s_k = kPa
alpha_r <= 30 deg =

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