PREPRUFE® 300R Plus Damp Proof and Tanking Membrane (Bondlast)
- Abbreviation
- Appraisal number 1307 (2026)
- Valid from
- 16/07/2026
- Information provider
- BRANZ Limited,
- Information type
- BRANZ Appraisal,
- Format
- PDF,
Description
PREPRUFE® 300R Plus Damp Proof and Tanking Membrane is a pre-applied damp-proof membrane (DPM) and tanking membrane for basement retaining walls and floors. It is applied under floor slabs and foundations and to the exterior face of basement retaining walls to prevent liquid water or water vapour penetrating to the interior face in spaces where moisture may cause damage.
PREPRUFE® 300R Plus is supplied as multi-layered composite sheets in roll form.
Scope
1. PREPRUFE® 300R Plus has been appraised for use as a tanking membrane within the following scope:
- on buildings subject to specific design with substrates of in-situ or precast concrete complying with NZS 3101; and,
- where the membrane is subject to hydrostatic pressure with the pressure not to exceed 2 bar (20 m head of water).
2. PREPRUFE® 300R Plus must be adequately protected against damage during backfilling and in service.
3. The products must be installed by Bondlast licensed applicators.
