Heat and moisture proof unit, wall panel, and outer wall structure of building

摘要

To provide a heat and moistureproof unit applied to an outer wall structure capable of discharging moisture to the outside of a wall body and preventing dew condensation in a wall body.SOLUTION: The heat shading and moistureproof unit 1 comprises a sheet-like heat shielding reflective material 3 having low emissivity and a ventilation member 2 forming a hollow portion 20 between the heat shielding reflector 3. The ventilation member 2 is composed of an outdoor side ventilation member 22 disposed on the outdoor side of the heat shielding reflector 3, and an outdoor side ventilation member 22 disposed on the indoor side of the heat shielding reflector 3 and made of a moisture permeable sheet material or plate material And an indoor side ventilating member 21. The heat shading and moistureproof unit 1 is loaded together with heat insulating material between adjacent pillars.BACKGROUND OF THE INVENTION