DuO Green Roofs

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DuO Green Roofs

The Equus Soprema DuO Landscape Two Layer Roofing System is a two-layer torch applied membrane designed for use on green roofs, roof gardens, planter boxes and courtyards. It offers a superior, durable and root resistant waterproofing system.

DuO Landscape roofing membrane provides a stable but flexible modified bituminous product, with dual reinforcement and a double polymeric bitumen coating enriched with root resistant additives. The system also includes a loose-laid drainage mat to ensure free water drainage and adds protection to the membrane, extending the life of the system. The roofing system is suitable for both new builds, and roof refurbishments.

The system has been assessed and complies with the New Zealand Building Code, and holds a current BRANZ appraisal.

The basesheet and capsheets used for each system are specifically selected based on the requirements of the project, including substrate, weather conditions, and use of the area. These include fully torched, no flame glue, and mechanically fastened options.

This system can be used on plywood and concrete substrates to form a standard cold roof system, or alternatively as a Duotherm Warm Roof system that includes a Thermal PIR Insulation board and vapour barrier for guaranteed condensation control and a guaranteed R-value as per the New Zealand Building Code.

Green Roof Options:

The intensive green roof:

  • Is easily accessible
  • Comparable to a garden on a ground floor (inc. water features)
  • Widespread vegetation choice: lawn, bushes, trees etc.
  • Requires a lot of maintenance
  • Requires the greatest structural requirements
  • Higher cost

The simple intensive green roof:

  • Is less accessible
  • Intended for aesthetic purposes
  • Sill allows choice of vegetation
  • Requires less maintenance
  • Less structural demands
  • Is more economical compared to an intensive green roof.

The extensive green roof:

  • Is only accessible for inspection and maintenance
  • Requires very low maintenance
  • Aesthetical & ecological purpose
  • Lowest structural requirements
  • On wood, metal and concrete roofs
  • It is the most economical solution

Key Benefits:

  • Ecological and aesthetical roof concept
  • Thermal and sound insulation
  • Natural filter for rainwater (slow down effect in storm water release)
  • Additional protection of waterproofing
  • Increase in property value (recent Toronto City Study)
  • Excellent durability and easy maintenance
  • Life expectancy of at least 35 years in NZ climates
  • Mechanically fixed solutions and no flame systems available
  • Complete roofing solutions available
CoCA-Feb-2013-10-crop-sm

Technical support provided by our team:

  • Project specific specifications and details
  • Condensation risk analysis for warm roofs
  • Wind uplift studies for warm roofs
  • On-site quality assurance
  • Certified Applicator installation available nationwide
  • Extended Warranties available
  • Total System Warranty available

Why Use DuO Landscape?

* Superior quality with over 90 years proven performance worldwide.

* A high-tech, root resistant membrane providing a ecological and aesthetical roof concept.

* Excellent durability and easy maintenance, with a life expectancy of at least 35 years in all New Zealand climates.

* Backed by a 20-year product warranty when installed in accordance with the product specification and by a certified applicator.

* Green roofs and roof gardens provide thermal and sound insulation to the building.

* Each project is independently designed with the use of project specific Condensation Risk Analysis (CRA) and Wind Uplift Studies for Warm Roofs to ensure the best system available for the buildings requirements.

* Condensation Control when used with a warm roof – The roofing system moves dew point to the outside of the structure, ensuring there is no condensation build up in the ceiling cavity.

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