To provide a sheet-waterproofing roof capable of preventing breakage of the roof by preventing buckling and separation between a metal cover and a heat insulation material.

A heat insulation panel 4 is formed by interposing the heat insulation material 3 between two metal covers 1, 2. A plurality of heat insulation panels 4 etc. are placed on a roof underlayer 5 and adjacent heat insulation panels 4 etc. are joined to each other. In the sheet-waterproofing roof, a waterproof sheet 6 is laid on an upper surface of the heat insulation panel 4 in a covering manner. Rib parts 7 are formed by forming recesses or protrusions on the metal cover 1 on the upper surface side of the heat insulation panel 4. A bonding part 8 for bonding the waterproof sheet 6 is formed on the upper surface of the heat insulation panel 4 except the rib parts 7.