Butynol Substrates: It can be applied to plywood (treated according to specific standards), concrete, and some metals.
If your Butynol deck is leaking, you must act quickly to prevent water from soaking the underlying plywood substrate, which can lead to costly dry rot or structural failure.
   
Butynol deck membrane technical data sheets, covering physical properties, typical uses, and installation requirements, are available directly from the manufacturer and suppliers' websites. ARDEX is the primary marketer and manufacturer of Butynol in New Zealand and Australia.
   

Butynol Deck
AUCKLAND Butynol Deck
 

Butynol Deck Repair and Maintenance Services

A Butynol deck refers to an outdoor surface, like a balcony or deck, waterproofed with Ardex Butynol, a durable synthetic rubber membrane known for resisting sunlight, heat, and ozone, creating a seamless, flexible, and long-lasting waterproof layer for protection against moisture.

It's a popular choice in places like New Zealand and Australia for protecting decks, roofs, gutters, and even reservoirs.

Butynol Deck Membrane Key Characteristics
Ardex Butynol Deck Membrane

  • Material: A synthetic rubber (butyl rubber) membrane.

  • Durability: Highly resistant to UV, heat, ozone, and aging.

  • Flexibility: Stays flexible to accommodate expansion and contraction in changing temperatures.

  • Waterproofing: Forms a continuous, impermeable barrier against water.

  • Applications: Ideal for exposed decks, balconies, roofs, gutters, and even tanking.

  • Professional Installation: Typically installed by trained applicators for warranty purposes.

  • Maintenance: Can be cleaned with mild solutions (broom, sugar soap); high-pressure washing near laps should be avoided.

 Butynol is a high-performance synthetic rubber membrane (predominantly butyl rubber) widely used for waterproofing flat roofs, balconies, and pedestrian decks. Manufactured primarily by ARDEX, it is favored for its extreme durability, UV resistance, and flexibility across wide temperature ranges (-50°C to 150°C).

Ardex Butynol Project
 

Butynol Deck Membrane Technical Data Sheets
BUTYNOL TDS    BUTYNOL SPECIFICATIONS    BUTYNOL BROCHURE 
         
BUTYNOL ENDURA    BUTYNOL BRANZ 436    BUTYNOL SDS 
         
BUTYNOL GUIDE    BUTYNOL SUBSTRATE    BUTYNOL CARE 
         
BUTYNOL CAD    BUTYNOL QA SHEET    BUTYNOL BPIRS 
 
Butynol Membrane Description
 Butynol® is a synthetic butyl rubber waterproofing membrane with properties which resist ageing from heat, sunlight and ozone. It has excellent gas impermeability and toughness and remains flexible at low temperatures and is suitable in all climatic zones.

Butynol® is used as a single layer membrane in horizontal or vertical applications for waterproofing decks, roofs and gutters. It is primarily applied to the outside of a sub-structure of a building to prevent water ingress.

Other places where ARDEX Butynol® can be used include under floor slabs, behind masonry walls, the lining of substrates of in situ or precast concrete; retaining walls, lift shafts, tunnels, living/warm roofs, reservoirs and planter boxes.

SUBSTRATES: Concrete, Plywood, Insulation board, Orientated Strandboard, CFC Sheet, Timber, Galvanised Metal, Zincalume. For further substrate types please consult ARDEX Technical Department.
Butynol Surface Preparation and Installation
Substrates need to be clean, smooth, dry and free of sharp edges, loose or foreign materials, oil, grease and other materials that may damage the membrane. All surface voids greater than 5mm wide shall be properly filled with an acceptable fill material.
Laying of ARDEX butynol membranes over checked or delaminated plywood is unacceptable. Refer to the relevant ARDEX Substrate Specification document for further information.

The installation of ARDEX Butynol® should be carried out by an approved ARDEX Installer. Installation shall be undertaken in accordance with all relevant technical information related to the selected installation method, including information contained within the ARDEX installation documents.

Note: A Licensed Building Practitioner (LBP) is required to carry out Restricted Building Work. A LBP must do or supervise this work. They must work within the scope of their licence class.

PRIMING Prior to the application of ARDEX Butynol® in cases of extreme porosity the surface may require priming with ARDEX WA 98A/ARDEX WA 98S 50/50 Blend. Coverage of primer will depend on the porosity of the substrate. ARDEX Butynol® is normally fully bonded to the prepared substrate with side and end laps of 50mm. Overlaps shall be sealed using the ARDEX Seam Tape/Seam Primer system.

ARDEX Butynol® may be used in various combinations to produce a variety of specifications tailored to suit the individual waterproofing need. The exact specification will depend on functional and economic requirements. Advice should be sought for suitable specification from ARDEX.
 
 
   
   
 
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