Fiberglass shower – Installing a fiberglass shower pan can have many benefits for homeowners. A fiberglass shower pan accumulates less dirt and moisture than a tile shower floor, available in several sizes and configurations and can even include a pre-shaped bench.
Remove the existing shower floor. If the existing shower floor is made of tiles, use a utility knife or chisel held at a 45-degree angle to the tile and hit the handle with a hammer to break the tile from its mortar bed. Continue down to the copper pan, loosen the pan with a utility knife and pull it free. If the existing shower pan and walls are acrylic or fiberglass, remove the shower walls first, loosen them with a utility knife and pull them free, then unscrew and remove the pan. Remove the first few rows of tiles above the fiberglass shower floor in a tiled shower. Choose a complete grout joint to make the resumption of tiles easier and break the tile away from the backer board with a knife and hammer. Remove all mortar, but be careful not to damage or break the backer board.
Prepare the surface of the shower floor to receive the shower pan. Using a 30-lb. roofing mat, or glue Backer to smooth out any inconsistencies in the shower floor. The same tag mat should also include the lower several inches of the fiberglass shower walls provide a watertight seal. If the manufacturer recommends support for shower pan, create a crushed mortar bed with one part Portland cement to five parts moist sand, which makes it possible to dry and crush it into a uniform driveway stone and create a layer under the shower pan for support.