How to waterproof a shower

Jas Naylor
View the video

How to waterproof a shower

View the video
×

More D.I.Y. Advice

low water garden

Planning & Projects How to create a low-water garden ‘Dry’ or ‘low-water’ gardening is a real art and, when done right, will provide you with an inviting landscape that uses very little water.

Finished artificial green garden wall behind garden bench 02:05

Planning & Projects How to create a green wall using artificial hedge Green walls are all the rage at the moment, but buying and maintaining one can be costly. Why not have a go at creating your own using pieces of artificial hedge – it looks great and will last the distance. Here’s how.

reducing water

How To Save Water How to reduce water usage Whether indoor or outdoor, there are lots of ways to be smart about water usage. And there are some simple actions that can make a big difference to your water bill.

ring doorbell 01:53

Doors How to install a ring doorbell The Ring video doorbell is a wireless doorbell which allows you to see who is at your front door. Find out how to install the Ring video doorbell yourself.

a tree lit up with solar lights around it 01:46

Garden Lighting How to install solar lights in your garden Solar lights are a great way to illuminate your pathways and highlight your garden beds at night. Install them yourself with these easy steps.

how to organise your pantry 02:52

Shelving & Storage How to organise your pantry Create an organisational system in your pantry with these handy storage hints. Trust us – its life changing!

front door 01:31

How To Paint How to paint your front door Make an entrance every darn day of the week by painting your front door a bold, enticing colour!

how to hang pictures

Walls The best way to hang pictures on a wall Learn the tricks to hanging your wall decor so it looks good – and doesn’t damage the plasterboard. Create an effortless-looking display by taking the time to consider spacing, proportion, frame styles and colour palettes.

Project Overview

Applying a waterproof barrier is an essential part of preparing to install a shower. We’ll teach you how to apply the waterproofing and reinforce the joins and gaps in the walls and floor. You will also learn how to prepare and reinforce your surfaces properly. 

Continue to step-by-step instructions

Step by Step Instructions

1 Mark out the area to waterproof around the shower
2 Prepare to waterproof the shower
3 Waterproof the shower walls
4 Waterproof the shower floor
  • Step 1. Mark out the area to waterproof around the shower

    Measure up your wall and mark out where you will be waterproofing. Then mask those lines off with masking tape. A good rule of thumb is to extend your waterproofing 100mm above your water outlet and 100mm wider than the edges of your shower. But check your local council regulations to make sure what is required.
  • Step 2. Prepare to waterproof the shower

    Use a brush to paint primer onto the area you want to waterproof. Use a generous amount on every surface. While you are waiting for the primer to dry, measure the edges, corners and internal joints that need to be waterproofed. Now cut lengths of the reinforcing membrane to cover these areas.
  • Step 3. Waterproof the shower walls

    Paint a coat of waterproofing where your reinforcing membrane will be installed. Then put the membrane on the still wet area. Now apply another coat over the top, flattening the membrane with your brush as you go. To make it easier when putting membrane into recessed corners, cut a nick that lets it split across the different surfaces. Once the membrane is installed, use horizontal strokes to paint a first coat of waterproofing across the walls.
  • Step 4. Waterproof the shower floor

    Install reinforcing membrane where the floor joins the walls and around the drain. Once again, paint the area, then put the membrane down and give it a second coat to flatten it. When your membrane is installed, waterproof the rest of the floor. Once the first coat has dried, give the whole shower cavity a second coat, this time using vertical strokes instead of horizontal ones on the walls.

Tools and Materials

Tools

  • Bucket
  • Paint brush
  • Paint roller
  • Roller tray
  • Safety glasses
  • Scissors
  • Spirit level
  • Tape measure

Materials

  • Masking tape
  • Pencil
  • Primer
  • Reinforcing membrane
  • Rubber gloves
  • Silicone
  • Waterproofing
low water garden

Planning & Projects How to create a low-water garden ‘Dry’ or ‘low-water’ gardening is a real art and, when done right, will provide you with an inviting landscape that uses very little water.

Finished artificial green garden wall behind garden bench 02:05

Planning & Projects How to create a green wall using artificial hedge Green walls are all the rage at the moment, but buying and maintaining one can be costly. Why not have a go at creating your own using pieces of artificial hedge – it looks great and will last the distance. Here’s how.

reducing water

How To Save Water How to reduce water usage Whether indoor or outdoor, there are lots of ways to be smart about water usage. And there are some simple actions that can make a big difference to your water bill.

ring doorbell 01:53

Doors How to install a ring doorbell The Ring video doorbell is a wireless doorbell which allows you to see who is at your front door. Find out how to install the Ring video doorbell yourself.

a tree lit up with solar lights around it 01:46

Garden Lighting How to install solar lights in your garden Solar lights are a great way to illuminate your pathways and highlight your garden beds at night. Install them yourself with these easy steps.

how to organise your pantry 02:52

Shelving & Storage How to organise your pantry Create an organisational system in your pantry with these handy storage hints. Trust us – its life changing!

front door 01:31

How To Paint How to paint your front door Make an entrance every darn day of the week by painting your front door a bold, enticing colour!

how to hang pictures

Walls The best way to hang pictures on a wall Learn the tricks to hanging your wall decor so it looks good – and doesn’t damage the plasterboard. Create an effortless-looking display by taking the time to consider spacing, proportion, frame styles and colour palettes.

Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint.
Top of the content