Waterproofing Tiled Showers, Bathrooms, Laundry & Other Wet Areas in New Zealand

The Warmup WPM750 waterproofing sheet membrane is a superior quality product available for professional Warmup installation. We use it for waterproofing tiled showers, bathrooms, laundry and other wet areas.

Sometimes that’s all the time needed to decide whether a certain product secured by highly trained professional installers is the best option for your needs. I’m talking about the Warmup installed WPM750 waterproofing membrane.

Why worry about tearing, cracking, bubbling and waterproofing issues when you don’t have to? Or why prolong your project timeline when there’s an alternative?

The short answer is, that you don’t.

What Is The Warmup WPM750 Waterproofing Sheet Membrane?

As you no doubt guessed, the Warmup Group has now its own Warmup WPM750 waterproofing membrane for waterproofing in bathrooms and tiled shower waterproofing. The Warmup WPM750 waterproofing membrane combined with the Warmup professional installations makes for a superior choice when waterproofing bathrooms and other wet areas.

Warmup Group has been applying WPM750 waterproofing membrane for over 10 years. And for excellent reason. So, here are some of the things we value in the Warmup WPM750 waterproofing membrane:

Durability and Quality

The Warmup waterproofing membrane of choice is a fleece-lined waterproofing product made up of synthetic rubber and Polypropylene filaments. This translates into impressive durability and waterproofing capabilities.

It’s NZ Made

It’s a locally made product that offers a better guarantee of continued availability and stability in price. Warmup WPM750 waterproofing membrane is manufactured in New Zealand, and it offers an extensive product guarantee including application.

Standard Thickness Throughout

The Warmup WPM750 waterproofing sheet membrane gives a 0.5 mm homogenous and reliable waterproofing gauge.


You can use it on a variety of surfaces, including timber and plywood, concrete, fibre-cement sheeting, and wet wall linings (including Villaboard and Gib Aqualine).

Quick Installation

Unlike other products, there is no need to wait for liquids to dry when you use the Warmup WPM750 waterproofing sheet membrane. After a mere 60 minutes, you can embark on the tiling part of the project!

Warmup WPM750 Waterproofing Sheet Membrane Vs. Liquid Waterproofing

But of course, the ultimate question is what makes the Warmup WPM750 Waterproofing Sheet Membrane the product of choice over the alternatives?

The answer is as impressive as it is multi-faceted:

  • Liquid waterproofing almost never results in even application. When our professionals use the WPM750 waterproof sheet membrane, on the other hand, the waterproofing gauge is thin and consistent.
  • Elongation tests of the WPM750 show the waterproof membrane can stretch 6 times before it breaks.
  • No cracking. Cracking is a common problem with liquid waterproofing applications, especially when there’s movement in the building in sight.
  • When you use liquid waterproofing, you have to wait for 24 hours between the coats. On top of that, an additional whopping 48 hours wait before you can start tiling. It is highly inconvenient, time-consuming and expensive. When you use the WPM750 waterproof sheet membrane, tiling can start in an hour!
  • The waterproofing success when using liquid waterproofing depends entirely on the skills and experience of the applicator. Warmup has highly trained professional installers who apply the Warmup WPM750 waterproofing sheet membrane quickly and correctly, giving you much-needed peace of mind.
  • Outlets and corners are notoriously critical points in wet area installations. Because the installation of the Warmup WPM750 waterproof sheet membrane does not require any cuts, there is also no danger of water ingress.
  • Equally, all membrane laps and corners are heat welded with a hot air gun. This avoids the need for bandages or tapes for reinforcing the corners and makes for much more reliable waterproofing.

Bathroom Waterproofing – The NZ Building Code

Obviously, none of that would matter if the product didn’t meet the requirements of the NZ Building Code. So, you’ll be pleased to hear Warmup WPM 750 comes with a 15-year warranty including application. It meets Clause B2 Durability: Performance B2.3.1(b). Also Clause E3 Internal moisture: Performance E3.3.6 and Clause E3 Internal moisture: Performance E3.3.6. This is under the condition that the product is used according to the Warmup installation and maintenance requirements. The Warmup Waterproofed Shower System BRANZ Appraisal (No 774) for use with undertile heating includes the WPM750 waterproofing sheet membrane.

Internal Waterproofing Sheet Membrane – Summary

To sum it all up, here are all the reasons the Warmup WPM750 waterproofing sheet membrane is New Zealand’s most secure undertile waterproofing system for your bathroom waterproofing.

  • Robust waterproofing
  • Quick installation, shortening the project completion time
  • Consistent quality result
  • Suitable for walls and floors
  • Wide scope of use (timber, plywood, concrete surfaces, fibre-cement sheeting, wet wall linings)
  • Suitable for use with undertile heating system
  • No maintenance is required (under normal conditions)
  • Excellent durability
  • Remains flexible at low temperatures
  • Installed by Warmup highly trained professional installers
  • 15-year warranty (If installed by Warmup Approved Applicator)
  • NZ Made
  • NZ building code approved
  • BRANZ Appraised

Share this post

Select Country