When it comes to the installation of your shower floor, there are some issues to consider. If you do not have anything on top of your plywood when you apply mortar to create your pre-slope; you will compromise your plywood floor as illustrated in the photo below. Your mortar bed will evaporate into your plywood, eventually rotting your floor. It’s important to take the right steps to prevent any damage to your shower floor.There is a solution to this: Use the Mortar Reinforcement Ki …