| 摘要 |
A production method for a Y-type waterproof sheet is provided to extend the service life of a structure by preventing the leakage of water and increasing double the tensile strength and adhesive strength on a connection of waterproof sheets. A production method for a Y-type waterproof sheet comprises the steps of dividing an end of a connection about 10 centimeters in the Y-type, inserting one hem of the connection to the divided part and spreading, and putting the remaining 10-centimeter hem on the connection and engaging with each other upward and downward. |
