Abstract: A composite pervaporation laminate incorporates a thin hydrophilic film laminated on a formable macroporous support layer. The method for making the membrane involves solution casting a thin film on a carrier substrate and transferring the said film onto a macroporous support by hot pressing, such as by decal transfer. Ultra-thin defect-free film, such as less than 5 micrometers, are laminated using this method to achieve very high-water transmission rates and very low or zero gas permeation. The membrane can then be formed into a three-dimensional structure by pleating or corrugating to increase the surface area. The membrane can be used as spacers in an ERV application.