Why Use Duotherm?

* Superior quality membrane with over 40 years proven performance worldwide.

* Minimal slates loss: the special high-tech, slate chip surface offers an extended UV resistance and a tidy, aesthetic finish.

* Excellent durability with a life expectancy of at least 35 years in all New Zealand climates. Optimal for building owners that look for a long return-on-investment period.

* Easy maintenance.

* Insurance backed SOPREMA warranty when installed in accordance with the product specification and by a Certified Applicator.

* Each Duotherm project specification receives a project specific Condensation Risk Analysis (CRA) and Wind Uplift Report following NZS1170.2 Wind Action to ensure and proof the warm roof system performance.

* Condensation Risk Control – The roofing system moves the dew point to the outside of the roof structure, ensuring there is no condensation build up in the ceiling cavity. No condensation means a healthier building and living/working environment.

* No need for roof cavity ventilation due to the fact that there’s no condensation formed within the roof space. This negates the need for mechanical ventilation or roof ventilation penetrations through the membrane making the system more watertight.

* Energy cost savings are maximized with less need for heating or cooling throughout the building. The system pays for itself over time.

* Creates more space within the ceiling for services.

* It’s a light-weight system that’s wind load resistant and strong, but flexible enough to resist seismic movement.