ROOT-PREVENTIVE JOINT FILLER, DRAIN-RELATED ROOT-PREVENTIVE SEALING MATERIAL, AND WATERPROOF EXECUTION BODY

PROBLEM TO BE SOLVED: To prevent a water-leakage accident by coating the roof floor section of a building with a root-preventive film consisting of a material, in which a specific quantity of a root- preventive agent is contained in a molding type and an infection type joint fillers, or a root- preventive coating material, in which a specific quantity of the root-preventive agent is comprised in the circumferential surface of the molding type joint filler. SOLUTION: When the roof floor section of a building is waterproof-executed, a waterproof layer 1, on which an asphalt roofing, a waterproof sheet, etc., are laid, is formed onto a concrete foundation surface a1. A waterproof-layer protective layer 2 composed of the laying of an insulating sheet, etc., is laminated on the top face of the waterproof layer 1, and molding type root-preventive joint fillers 3 made up of tabular asphalt containing an at least 0.5wt.%, root-preventive agent are arranged onto the waterproof-layer protective layer 2 in a latticed shape. The root-preventive joint fillers 3 disposed in the latticed shape are fixed by mortar 4 executed in a dumpling shape, and concrete is placed into the restriction box space of the joint fillers 3 and a protective concrete layer 5 is formed. Accordingly, roots are not penetrated into the Joint fillers, and the breakdown of joint sections and a water-leakage phenomenon can be prevented.