Fan Fei (Beijing) Energy-Saving Technology Co., Ltd. is a professional manufacturer and exporter of house wrap.Company’s main products ® PANZHU ® house wrap covering the building maintenance structure insulation, can block the invade and attack of wind and rain off the enclosure structure, reduce air convection, effectively reduce heat loss. While strengthening the air tightness and water tightness of the building, it can also provide unique permeability, so that the water vapor in the inner part of the enclosure structure can be quickly discharged to avoid the damage of mold and condensation, so as to protect the building.