Patent ID: 8821669

Claim:
A process for waterproofing a semimanufactured product having a three dimensional conformation with an inner surface and an outer surface, the process comprising: preparing a waterproofing sheath, the preparing including: superimposing two edges of a membrane; and welding the superimposed edges of the membrane to one another to give the waterproofing sheath a three-dimensional conformation; arranging the semimanufactured product onto a shaped support with the waterproofing sheath covering a surface of the semimanufactured product that is to be waterproofed, wherein the shaped support is oriented substantially vertically; and pressing the semimanufactured product, after the arranging of the semimanufactured product onto the shaped support, to bond the waterproofing sheath to the surface of the semimanufactured product; wherein the pressing includes pressing the semimanufactured product between two deformable plates by rotating at least one of the deformable plates around a substantially vertical axis.