Manufactured to have unique properties for each waterproofing layer in the waterproofing construction method for concrete buildings, and when waterproofing is completed, the waterproofing material of the floor layer and the waterproofing material of the top layer are independent Each waterproofing layer that can maximize the waterproofing effect by exhibiting a special performance while ensuring that the waterproofing materials from the bottom layer to the top layer are mixed together to show a strong and flexible performance It is a specialized composite waterproofing method