Self-adhesive steel purline heat insulation belt

The utility model belongs to the technical field of cold and hot bridge prevention of steel structure purlins, particularly relates to a self-adhesive steel purlin heat insulation belt, and aims to solve the problems that a steel purlin heat insulation belt in the prior art is easy to move and fall off when being laid on a steel purlin and subjected to a next process, is poor in waterproofness, is easy to enter water and is blown off by wind in windy and rainy days, and is inconvenient to use. According to the technical scheme, the steel purlin heat insulation belt comprises a steel purlin heat insulation belt body, an interface layer is arranged on the top of the steel purlin heat insulation belt body, a waterproof layer is arranged on the top of the interface layer, and a matching layer is arranged at the bottom of the steel purlin heat insulation belt body. The interface layer and the waterproof layer cover the steel purline heat insulation belt body while the steel purline heat insulation belt body, the m