Drive a nail into the floor every 8 12 inches 20 30 cm so the tar paper stays in place.
How to make a shower floor.
The easiest way to make your shower floor less slippery is to add traction by installing an anti slip shower mat.
Get a professional plumber to rough in the shower drain before starting the concrete installation.
Diy step by step instructions on how to build a mortar shower pan.
Lay a large sheet of tar paper on the entire floor of your shower pan and smooth it out as flat as possible.
Also make sure your floor is pre sloped before installing the rubber liner in the following steps to prevent.
Pour mud into the shower pan mixing it with a trowel as you go to get rid of air bubbles.