Preprufe 300R Plus & 160R Plus membranes are unique composite sheets comprised of a thick HDPE film, pressure sensitive adhesive and weather resistant protective coating. Designed with Advanced Bond Technology and a dual adhesive ZipLap, Preprufe Plus membranes form a unique, integral bond to poured concrete, preventing both the ingress and lateral migration of water while providing a robust barrier to water, moisture and gas. Release liner free and designed for efficient, reliable installation, the Preprufe Plus ZipLap allows for an adhesive to adhesive bond at seam overlaps and delivers superior performance in harsh conditions without the need for specialized equipment, heat or power.
The Preprufe R Plus System includes:
Preprufe 300R Plus — heavy-duty grade designed for use below slabs greater than 300mm thick and on rafts (i.e. mud slabs). Designed to accept the placing of heavy reinforcement using conventional concrete spacers
Preprufe 160R Plus — thinner heavy-duty grade designed for slabs less than 300mm thick and for blindside, zero property line applications against soil retention systems. Can also be used in vertical applications.
Preprufe Tape LT — for covering cut edges, roll ends, penetrations and detailing (temperatures between -4°C and 30°C).
Preprufe CJ Tape LT — for construction joints, and detailing (temperatures between -4°C and 30°C).
Bituthene® LM3000 Liquid Membrane—for sealing around penetrations, etc.
Adcor® — waterstop for joints in concrete walls and floors.
Preprufe Tieback Covers — preformed cover for soil retention wall tieback heads
New Zealand Building Code (NZBC)
The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:
- Clause B2 Durability: Performance B2.3.1(a), B2.3.2(a)
Use in Service History
Preprufe has been in use in New Zealand for over 20 years, during this time it has been proven to be New Zealand's most trusted below ground tanking membrane used on some of New Zealand most high profile residential and commercial projects.
- Commercial Bay
- New Zealand International Convention Centre
- Wellington Convention Centre
- Pacifica Tower
- Arras Tunnel
Refer to Allnex for assistance.