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ARDEX Butynol - Butyl Rubber Waterproofing Membrane

A synthetic rubber membrane with properties which resist ageing from heat, sunlight and ozone. It has excellent gas impermeability and toughness and remains flexible at low temperatures.

Key Features
  • BRANZ Appraised (No. 436)
  • CodeMark accreditation (No. AQ-050516-CMNZ)
  • New Zealand made membrane
  • Extensive history throughout New Zealand and Oceania
  • E2/AS1 Acceptable Solution
  • Protects against water, moisture vapour, gases, sunlight, ozone, heat, frost, acids, chemicals and bacteria
  • Resists tearing, flex cracking, bubbling and abrasion
  • 20 year ARDEX warranty
  • Single-ply, flexible and extemely versatile
  • Potable water AS4020 certificate approved
NZ Made
NZ Made
Scope of Use

ARDEX Butynol is appraised for use as waterproofing membranes for buildings (roofs and decks) with timber supporting structures designed and constructed in accordance with the NZBC, with normally flat or pitched roofs constructed to drain water to gutters and drain outlets complying with NZBC, with substrates of plywood or sheet and with decks that have a maximum size of 40m².

ARDEX Butynol is also appraised for use as waterproofing membranes for external reinforced concrete and plywood roofs, pedestrian decks and balconies up to three storeys with a maximum height from ground to eaves of 10m and with a floor plan area limited only by seismic and structural joints. It is also suitable for external reinforced concrete and plywood roofs, pedestrian decks and balconies subjected to maximum wind pressures, with reinforced concrete structure and timber supporting structures designed and constructed in accordance with the NZBC, and with normally flat, curved or pitched roofs constructed to drain water and gutters and drain outlets complying with NZBC.

0° Minimum Roof Pitch Required
Statement of Building Code Compliance

ARDEX Butynol, assuming use, install and maintenance stated within the ARDEX Butynol Datasheet, will meet the following provisions of the NZBC:

  • Clause B2 Durability: Performance B2.3.1 (b) 15 years.
  • Clause E2 External Moisture: Performance E2.3.1 and E2.3.2.
  • Clause F2 Hazardous Building Materials: Performance F2.3.1.
In-Service History

ARDEX Butynol has been manufactured in Christchurch since 1962 and has been applied to many iconic and long-standing buildings such as the Christchurch Town Hall and the Christchurch Airport.

Other Performance Attributes

ARDEX Butynol is resistant to colour fade, with light coloured ARDEX Butynol being the same provided that water running off unpainted treated timber and some metals (e.g. copper), do not run over the applied surface. ARDEX Butynol can be painted to restore or ensure colour longevity.

B2 Durability compliant
E2 External Moisture compliant
External Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
BRANZ Appraised
BRANZ Appraised
Test Results
Test Results
Product Assurance
ARDEX Warranty Information
BRANZ Appraisal 463
CodeMark Certificate
Data Sheet
Material Safety Data Sheet
Test Results
Other Literature
ARDEX Company Profile
CAD/PDF Details
Butynol Ballasted Garden Roof
Butynol Ballasted Scupper Roof
Butynol Batten Profile
Butynol Central Gutter
Butynol Corrugate Pitch Change Junction
Butynol Eave and Verges
Butynol Finishing Gutter
Butynol Flashing – Concrete
Butynol Gutter – Parapet
Butynol Gutters and Outlets
Butynol Internal Corners
Butynol Internal Gutter
Butynol Internal Roof Drain
Butynol Internal Roof Drain
Butynol Junction Walls – Cavity
Butynol Junction Walls – Direct Fix
Butynol Junction Walls – Opening Cavity
Butynol Junction Walls – Opening Direct Fix
Butynol One Way Substrate Ventilator
Butynol Overflow
Butynol Penetration
Butynol Rainwater Head
Butynol Scupper Outlet
Butynol Scupper Outlet and Gravel Retainer
Butynol Taping Substrate
Enclosed Shower
Shower Area Over Bath – Unenclosed Shower
Typical Shower Construction

ARDEX New Zealand supply and manufacture a range of quality construction materials, including products for levelling floors; external and internal waterproofing; and fixing natural stone and tiles.

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