Concrete shower pans will be more stable , nor leak. If you have a tar paper pan I suggest you replace this which has a concrete pan. These build a brilliant space for a shower tray to be fitted. I additionally recommend stone resin shower trays as these will be more durable then acrylic trays.
To be sure the pan is laid correctly you’ll want a solid wood or geberit wc. This ensures the pan will probably be locked and protected by a firm base. Lay roofing felt within the floor space in which the pan will likely be laid. Mix mixtures of 5 parts sand to 1 part cement and apply in stokes from the direction with the drain. Place the pan on the mixture and even a combination out by moving the pan back and forth, along. Wrap the side of the pan along the wall cover a distance of around ten inches and wrap over the ledge the location where the door is going to be fitted. The corner should be folded over as well as the corners has to be sealed driving them to water tight. Then place a mortar bed on the pan applying inside the direction on the drain.
Apply some crushed stone and tile as this will ensure the lake flows on the drainage holes. A wall ought to be installed within the floor how the wall overlaps the bottom, you will find there’s flexible seal. Flexible sealant is preferable to grout because it can create an expansion joint at each corner and angle from the pan.