John Konstantakopoulos, a Principle consultant, founded Efficiency Matrix with the Downlight Mitt downlight cover product, from there he proceeded to grow Efficiency Matrix into building airtightness/building performance. He has completed many whole building commercial building airtightness blower door tests in Australia, and successfully consulted with builders to actually achieve buildings of an airtight state lower than 5m3/h/m2@50Pa. His relationship with builders over the years has earned him repeat business from all the large construction companies operating in Australia. Founded a series called ecoEVOdesigns on youtube, and stars as the host of the show. www.ecoevo.com.au ATTMA Level 2 Certified, Oil&Gas seasoned air tightness tester.
Technical Director & Consultant
Joseph Cheung, a Principal Consultant, has a vast amount of experience and knowledge in building performance. He is an Architect, Greenstar Accredited Professional and NatHERS Assessor. He specialises in modelling building performance, duct systems, risers, exhaust systems and whole building performance, with regard to airtightness and insulation consistency. There are solutions for everything, and Joseph has the skills to avert issues and fix issues that have been identified during commissioning. Over 15 years experience in building performance, with a huge reputation in achieving results for his customers. ATTMA Level 2 Certified.