Construction method of inner insulation panel, inner insulation wall and inner insulation panel

摘要

PROBLEM TO BE SOLVED: To provide a heat insulating panel which can be easily installed to improve time and labor and troublesome work of construction for improving heat insulating performance when repairing an existing building or erecting a new building, and can suppress the risk of internal condensation.SOLUTION: A heat insulating panel 11 includes a square interior substrate material 12 and a heat insulating material 13 laminated on the interior substrate material 12. The heat insulating material 13 has a coefficient of moisture permeability of 0.0017 g/m.h.mmHg or less and a thermal conductivity of 0.040 W/m.K or less. The heat insulating material 13 is provided with a plurality of slits 14.