Ezymix Internal Waterproofing Membrane
- Abbreviation
- Appraisal number 1299 (2025)
- Valid from
- 24/11/2025
- Information provider
- BRANZ Limited,
- Author
- Building Research Association of New Zealand Ltd.
- Information type
- BRANZ Appraisal,
- Format
- PDF,
Description
Ezymix Internal Waterproofing Membrane is a highly elastic, liquid, single component, solvent-free waterproofing membrane for use under tiles on walls and floors.
Scope
1. The Ezymix Internal Waterproofing Membrane has been appraised for use as a waterproofing membrane for internal wet areas of buildings within the following scope:
- on floor substrates of plywood, concrete, flooring grade particleboard, fibre cement compressed sheet and fibre cement sheet tile underlay; and,
- on wall substrates of concrete, concrete masonry, wet area fibre cement sheet lining systems and wet area plasterboard lining systems; and,
- when protected from physical damage by trafficable floor finishes; and,
- where floors are designed and constructed such that deflections do not exceed 1/360th of the span.
2. The use of the Ezymix Internal Waterproofing Membrane on concrete slabs where hydrostatic or vapour pressure is present from below is outside the scope of this Appraisal.
3. Movement and control joints in the substrate must be carried through the membrane and trafficable floor finish. The design and construction of the substrate and movement and control joints is specific to each building and is therefore the responsibility of the building designer and building contractor and will be outside the scope of the Appraisal.
4. The trafficable floor finishes are outside the scope of this Appraisal.
5. The membrane must be installed by trained installers, approved by Ezymix Limited.
