ROTHOBLAAS Clima Control 105 (Variable Vapour Control Membrane) (1.5m x 50m)CLIMA CONTROL 105 is the variable diffusion membrane with a highly variable vapour diffusion resistance (0. 1 20 m), which gives the product the ability to adapt to the hygrometric conditions of the structure, depending on the interstitial relative humidity: in the case of high amounts of moisture, it behaves like a more breathable membrane, facilitating the structure drying.