Nomenclature
cfoam	specific heat of the base layer (J/(kg.K))
cmix	specific heat (soft foam layer with PCM + hard foam layer with PCM) (J/(kg.K))
cPCM	Specific heat of the PCM (J/(kg.K))
f	decrement factor
fw	PCM mass fraction
Lv	latent heat phase change of PCM
q	heat flux (W/m²)
s	thickness (mm)
T	temperature (°C)
Tamp	amplitude temperature (°C)
Tmean	external mean temperature (°C)
U-value	thermal transmittance (W⁄(m2.K))
Greek Letters
∆	Thermal amplitude
λ	thermal conductivity (W/m.K)
Abbreviations
CV RMSE	Variation of the root mean square error coefficient
ECR	energy consumption reduction
GOF	goodness-of-fit
IEA	International Energy Agency
NBME	normalized mean bias error
PCM	phase change materials
R2	correlation factor
RMSE	root mean square error
PU	polyurethane
TES	thermal energy storage
wt	weight