PURPOSE: To simplify the execution of waterproof for a corner section, and make sure of waterproof by closely attaching a self supporting waterproof substrate in a L shape in cross section at the contact section between a riser at a roof top and a roof floor so as to be bonded with both the surfaces of the substrate coated with adhesives, a joining seal tape and the like.
CONSTITUTION: A self supporting waterproof substrate 1 in an L-shape in cross section with its corner section chamfered is closely attached to a space between a waterproof sheet 4 at a riser section at the roof top and the like and a waterproof section over the roof floor with both the surfaces of the substrate applied with adhesives, a pressure sensitive adhesive double coated tape, a joining seal tape and the like so as to be bonded in a watertight condition. This constitution thereby eliminates a need for processing a corner section hard in execution. In this case, when the height of a prefabricated waterproof member is higher than the height of the riser section of a building, the prefabricated waterproof member is cut off in such a way as to be adjusted to the height of the riser section of the building. By this constitution, execution efficiency can thereby be enhanced.
IMAI TAKAYOSHI
KOJIMA TORU
KUCHIKI KANESADA
