The thermal conductivity of the weather fabrics is 0.137 W/mK at 0 degree and 0.069 W/mK at 55 degree Celsius which proves that weather fabric has very low thermal conductivity and most suitable for the intended application.
The test certificates as issued by the Central Institute Plastic Engineering Technology as per ASTM 1530 for Thermal Conductivity in 0 Degree & 55 Degree are reproduced below: