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ProtectoWall & Pro-Drain 8 Waterproofing System

ProtectoWall is a self adhesive damp proof membrane (DPM) designed to be applied to the exterior face of basement and below grade foundation walls from moisture and vapour transmission. Pro-Drain 8 is a dimpled sheet product developed specifically for below ground waterproofing protection.

ProtectoWall is cold applied peel and stick membrane consisting of a tough fabric reinforcement laminated between two layers of SBS modified rubberised asphalt. ProtectoWall is tacky on both sides of the membrane providing excellent adhesion onto both the substrate and on to itself at laps and also for holding the Pro-Drain 8 in place.

Pro-Drain 8 is black in colour and manufactured from High Density Polyethylene (HDPE). The sheet thickness is 0.6 mm with a dimple height of 8mm. Pro-Drain 8 is available i  2.1 x 1.2m (2.52m²) sheets.

Key Features
  • ProtectoWall is BRANZ appraised
  • Professionally installed by Certified Installers
  • 50 year durability
  • Clean, efficient and and cost effective installation
  • Reinforced membrane will withstand puncture and severe stress to 425Psi
  • ProDrain8 provides an extremely durable form of protection.
  • Provides a high compressive strength of up to 250kN/m²
  • Continuous protection with an overlapping dimple rather than a traditional butt joint
  • Impervious to root penetration and rot
  • Fast and easy to install
  • Pro-Drain 8 will keep water from reaching the wall surface whilst providing ventilation and drainage
Scope of Use

Protectowall has been appraised as a damp-proof membrane for use under floor slabs complying with NZS 3604 and as a damp-proof membrane behind concrete masonry basement walls and under floor slabs complying with NZS 4229.

ProtectoWall has also been appraised for use as a damp-proof membrane on buildings subject to specific design within the following scope:

  • where the design of the building will  be the responsibility of the building designer; and,
  • with clean, sound, continuous substrates of insitu or precast concrete complying with NZS 3101 and AS/NZS 1170 or concrete masonry complying with NZS 4230 and 4210; and,
  • where the membrane is adequately protected against damage during backfilling and in service; and,
  • where subsoil drainage and free draining granular backfill has been placed behind basement walls.
Limitations on Use

The system must only be installed by Trained and Certified Installers

ProtectoWall & ProDrain8 can only be exposed to UV for 60 days maximum 

Statement of Building Code Compliance
  • B2 DURABILITY; Performance B2.3.1. (a) not less than 50 years. ProtectoWall meets this requirement.
  • E2 EXTERNAL MOISTURE; Performance E2.3.3. ProtectoWall meets this requirement.
  • F2 HAZARDOUS BUILDING MATERIALS; Performance F2.3.1. ProtectoWall meets this requirement and will not present a health hazard to people.

ProtectoWall has been appraised as an Alternative Solution in terms of New Zealand Building Code Compliance.

BRANZ Appraised
BRANZ Appraised
Specification Clause/Guide
BRANZ Appraisal: ProtectoWall

517 [2019]

BRANZ Appraisal: Weatherization System

621 [2020]

Additional Information

Marshall Innovations provide weathertight solutions from below ground to pre-cladding.

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