Colphene BSW Tanking Membrane System
- Abbreviation
- Appraisal number 1037 (2023)
- Valid from
- 6/12/2023
- Information provider
- BRANZ Limited,
- Information type
- BRANZ Appraisal,
- Format
- PDF,
Description
Previously known, as DeboFlex 3.5 CS/F K180 Special, then Deboflex Special Tanking and DPM Membrane.
Colphene BSW Tanking Membrane System incorporates pre-applied, torch-applied or self-adhered tanking membranes for basement retaining walls and floors.
The membranes are 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.
Scope
Colphene BSW Tanking Membrane System has been appraised for use as a damp-proof membrane (DPM) within the following scope:
- on buildings subject to non-specific design under floor slabs complying with NZS 3604 and behind concrete masonry basement walls and under floor slabs complying with NZS 4229;
- in buildings subject to specific design with substrates of in-situ or precast concrete complying with NZS 3101 or concrete masonry complying with NZS 4230 nd 4210;
- where subsoil drainage and free draining granular backfill has been placed behind basement walls.
Colphene BSW Tanking Membrane System has also been appraised for use as a pre-applied 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 metres head of water)
Colphene BSW Tanking Membrane System must be adequately protected against damage during backfilling and in service.
The product must be installed by Equus Industries Ltd certified applicators.