HUMIDITY ADAPTIVE VAPOUR RETARDER

摘要

Vapor retarder comprises: at least one first layer which is variable and moist, in which the ratio for the water vapor diffusion resistance of the standard deviation-value at 25% average relative humidity to the standard deviation-value at 71.5% average relative humidity is greater than 3; and a second layer which is not moist and the ratio for the water vapor diffusion resistance of the standard deviation-value at 25% average relative humidity to the standard deviation-value at 71.5% average relative humidity is less than 1.5. An independent claim is also included for a system comprising vapor retarder and a component to be sealed.