Soprema DuOtherm Built -Up Roof

Advantages of DuOtherm Built-Up Roof: – Energy Cost Saving – Return on investment – Green Star rating benefit – High Quality waterproofing – High Thermal resistance – Proven Durability in ASEAN – Expected lifetime of 25 to 35 years (SGS report) – Insurance backed warranty of 20 years DuO High Tech Waterproofing Membrane: – UV […]

Recent Works

Project: Roof Top – 766.92m2 Problems: The current waterproofing had aged and was affected by weathering. The existing membrane was breaking down in some locations. Membrane was damaged allowing water to penetrate. Insufficient falls causing water to pond on the roof. Leakages were reported. Conclusion: Total renovation of the waterproofing on the roof was required. […]

Roof Top Membrane – Laying DuO Membrane

On site laying the DuO High Tech AGR Membrane Tags: Built Up Roof 20 year warranty Built-Up Roof complete assurance green roof proven durability Tapered insulation waterproofing membrane waterproofing system

Soprema Roof Renovation Solution

Advantages DuO Mecano No need to remove existing topping No need to remove existing waterproofing Allows trapped vapour to move = no bubbles Wind load resistant High quality waterproofing Proven durability in the climate of Oceania Expected lifetime of 25 to 35 years (SGS report) Insurance backed warranty of 20 years DuO High Tech Waterproofing […]

Timelapse of Works -2018

Recent Roof Top works: Instullation – Tapered Thermal Insulation: Recticel Eurothane Silver  Waterproofing: -De Boer Debotack 2.5 T/F C175 Aero -De Boer Duo HT 4 GW/F C180 Firecare. -De Boer Duo Primer If you have a current job you would like to discuss with us, don’t hesitate to contact us on or you can […]

Product families

Learn about the different products we have available: DuO At first sight, DuO looks like any ordinary roofing roll. But DuO is more than that. DuO is a concept: the most high-performance roof membrane that modern technology can produce. And it’s all based around – you guessed it – bitumen. At the same time, DuO […]

Roof Top with a View

Recent works completed on a Roof Top in Mermaid Beach, Queensland. Type: Private Residence System: Double layer waterproofing on plywood Project Size: 300m2 Installation: Partially bonded base sheet with fully torched cap sheet. Materials: DeboTack 2.5 T/F C175 Aero and DuO HT 4 GW/F C180 Firecare Completed: 2018

Your Solution for Green Roofing…

Bituminous waterproofing the solution for green roofing Fully bonded waterproofing systems have proven to be the most durable solution for green, parking and terrace roofs. Bitumen membranes, with their high puncture resistance and root resistant qualities are ideal materials for this application. BWA supports all initiatives to stimulate green roofing as a protective plant cover […]


Sustainable and environmental issues are, quite rightly, matters of great importance to us all in construction. A full understanding of ideas once rarely mentioned – like ‘global warming’, ‘waste recycling’ and ‘life-cycle analysis’ – is now core to maintaining our reputation as a responsible industry. Bitumen Waterproofing membrane industry, BWA represents manufacturers who are committed […]

Renovation project on Lilyfield Road – Sydney – Australia

When Soprema was called in to renovate a leaking concrete roof in Sydney, it took on the challenge to reinstate the roof waterproofing and deliver a headache free roof system for the future. The building in question had been plagued with leakages for many years. Several other rectification methods were tried without success. The renovation […]