Skip to main content
Stesso

Waterproof Shower Walls and Joints

12:28
17:04
7M views

At 12:28 in

Building a GIANT Shower (Home Remodel)

Watch on YouTube

What happens here

With the cement board installed, it's crucial to apply a liquid rubber waterproofing membrane to all joints and seams, as well as any areas that might experience water infiltration, like around the window. First, brush a layer of liquid rubber onto all joints. Then, lay a waterproofing membrane (such as fiberglass tape) over the wet rubber on the joints, embedding it. Follow this by brushing another layer of liquid rubber over the membrane. Once all joints are sealed, roll three to four heavy coats of liquid rubber over the entire cement board surface to achieve a 40-mil thickness, as recommended by the manufacturer, ensuring complete waterproofing.

Goal: Create a fully waterproof barrier behind the tile to protect the wall structure from moisture.

Tools and materials

  • 9-inch Paint Roller — Applying multiple coats of liquid rubber to large wall surfaces
  • Paint Roller Tray Handy Paint Pail — Holding liquid rubber for roller application
  • Paintbrush — Applying liquid rubber to joints and seams
  • Waterproofing Membrane — Reinforcing joints and seams with liquid rubber

What they say

Hide

because the cement board would get damaged as the water creep into it we needed to waterproof this area and all the joints I'm using this waterproofing product from liquid rubber I brushed the liquid rubber on all the joints first then laid the waterproofing membrane over it and then covered it with more liquid rubber this ensures all the joints are protected from any kind of potential water threat so it's very important that you put this waterproofing membrane on any place that you've had the joint really the idea behind I think is when any of the stuff cracks which you're assuming it will this will be kind of the waterproofing membrane that prevent water from getting behind into those little cracks so once you get that on I'm gonna put a fat slab of waterproofing liquid rubber here and should be good it's almost like therapeutic you know once every joint in seam was covered I rolled three to four heavy coats of waterproofing using a nine inch roller to achieve about a 40 mil thickness as recommended by the manufacturer for child I'm using this

Auto-generated from the video audio.