For obvious reasons, waterproofing your bathroom is essential. But it doesn’t have to be a meticulous task. In fact, we recommend doing the job yourself, and here is our simple guide to doing exactly that!

First, let’s go over what you’re going to need.

You’ll obviously need enough of the waterproofing membrane to cover the shower recess, along with the rest of the room. A minimum of 100mm over the hob of the bathroom floor and 150mm up the walls inside of the shower needs to be waterproofed.

The vertical angle between all walls must also be sealed, at least 1800mm high. If your floor is timber, plywood or particleboard, the entire bathroom will need waterproofing.

All of these requirements are in line with the Building Code of Australia. Cutting corners is a possibity, but is not recommended in this case.

When undertaking a renovation yourself, you need to remember that every surface must be prepared and primed. Any previous grouting or waterproofing must be removed. Joins between the walls and floor, along with drains, are important as well. These should be smooth and free of debris or particles, to make sure the waterproofing membrane is sound.

You might want to use a polyester reinforcement mat that is fitted along the internal corners of the shower recess.

So let’s get started! The best part comes first- sweeping the bathroom to remove any excess dirt or rubbish.

After this, apply the primer, starting from the back. Let that dry before sealing any gaps with silicone. To do this, hold the silicone gun at a 45-degree angle while squeezing the trigger.

Wait 24 hours. If you want to begin other tasks, like painting, at this point tape can be used along the bottom of the walls for protection while you get on with your project.

Once the silicone and primer are complete you can begin waterproofing. Again, startfrom the back. First the waterproofing agent, then the membrane.

Remember that the waterproofing must be applied to every surface. Apply one coat, wait about 1-2 hours to let it set and dry. Then apply a second coat. Make sure the direction of this layer differs to that of the first.

After this, the waterproofing will need some time to really set in. In most cases thistakes 1-5 days. It is very important that you don’t use the bathroom during this time as the waterproofing can be ruined.

As you can see, this is a time-consuming process. And while it is achievable to do it yourself, it is advisable to consider hiring a professional crew like ours to take the stress off of your hands. Either way, you’ll want to make arrangements so that you and your family have a functioning bathroom during this time.

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