A method of installing a waterproof paneling system in an alcove bath or shower area having three adjoining walls and two interior corners, said adjoining walls comprising two side walls and one back wall, said method comprising:
- running a rubbery bottom seal along an upper surface of a tub ledge, shower base or floor, at an edge nearest the three adjoining walls;
- placing a sealant on top of the rubbery bottom seal;
- mechanically fastening a first inside corner molding in a first interior corner, said inside corner molding having two adjoining sides forming a right angle, each adjoining side adapted to run vertically along the length of, and mechanically fastenable to one or both adjoining corner walls, wherein a tongue portion of the inside corner molding extends from and is parallel to one side of the inside corner molding;
- running a sealant along the length of the first inside corner molding;
- sliding a first wall panel into the first inside corner molding so that a first vertical edge of the first wall panel is flush against the one side of the inside corner molding having the tongue portion extending therefrom, said first wall panel configured on the lower portion of its wall facing side to rest upon the rubbery bottom seal;
- pushing the first wall panel towards the first wall;
- placing a first PCC on a second vertical edge of the first wall panel, said second vertical edge opposite the first vertical edge inserted into the first inside corner molding;
- said first PCC having a front extension portion, a back extension portion and a tongue portion, said PCC adapted to run along a vertical or horizontal axis of a wall and mechanically fastenable to the wall,
- running sealant in a groove profiled on the second vertical edge of the first wall panel, said groove running the length of the first wall panel;
- mechanically fastening the first PCC to the back wall;
- inserting a first inside corner seal into a recess profiled on the a first vertical edge of a second wall panel;
- running sealant the length of a second inside corner molding;
- inserting a second inside corner molding on the first vertical edge of said second wall panel, said second inside corner molding substantially identical to the first inside corner molding, said second wall panel configured on the lower portion of its wall-facing side to rest upon the rubbery bottom seal and having a profile on a first vertical edge to receive both the tongue portion of the second corner molding and the first inside corner seal;
- mechanically fastening the second inside corner molding in a second, interior corner;
- adjoining the second wall panel to the first wall panel and the first PCC, said first wall panel having the first vertical edge inserted into the first inside corner molding and the second vertical edge connected to the first PCC, said first and second wall panels covering the back wall;
- placing a second PCC on the first vertical edge of a third wall panel, said second PCC having the same structural features as the first PCC, said third wall panel to cover a first sidewall, said third wall panel configured on the lower portion of its wall facing side to rest upon the rubbery bottom seal;
- running sealant in a groove profiled on the first vertical edge of the third wall panel, said groove running the length of the third wall panel;
- sliding the third wall panel into the second inside corner molding so that a second vertical edge of said third wall panel is flush against the one side of the second inside corner molding having the tongue portion extending therefrom;
- pushing the third wall panel towards the wall;
- mechanically fastening the second PCC to the first side wall;
- adjoining trim molding to the third wall panel and second PCC;
- inserting a second inside corner seal, substantially identical to the first inside corner seal into a recess profiled on the first vertical edge of a fourth wall panel;
- sliding the fourth wall panel into the first corner molding installed in the first inside corner, said fourth wall panel to cover the second side wall and having a profile along its first vertical edge to receive both the tongue portion of the of the first inside corner molding and the inside corner seal, said fourth wall panel also configured on the lower back portion of its wall-facing side to rest upon the rubbery bottom seal;
- pushing the fourth wall panel towards the wall;
- placing a third PCC on the second vertical edge of the fourth wall panel;
- said third PCC substantially identical to the first and second PCCs;
- running sealant in a groove profiled in the second vertical edge of the fourth wall panel, said groove running the length of the fourth wall panel;
- fastening the third PCC to the wall;
- and
- adjoining trim molding to the fourth wall panel and third PCC.