CarbonLite Authors

Andy Simmonds is an architectural designer & partner in Simmonds Mills Architects. He brings together his experience as a low energy building designer with research into moisture and energy issues. Andy’s own house was the first certified (and monitored) domestic EnerPHit retrofit in the UK.

Bill Butcher is an experienced Passivhaus builder, with years of low energy building retrofit experience. Bill is a trainer on the Construction Module of the Carbonlite Certified Passivhaus Designer course and a Certified Passivhaus Consultant and Tradesperson.

Tim Martel has worked for 10 years as a Chartered Architectural Technologist, Passivhaus Designer and for a little while as a Retrofit Coordinator. He has a background in calculations through commercial R&D.

Tim spent many years helping develop our AECB CarbonLite™ Retrofit Foundation course, working on monitoring of existing projects using Ominisense to find out what could be learned about moisture issues from the dozen or so projects we had sensors in. He also developed all of the cost calculations that were used in early versions of the course.

Tim was an AECB Experts for many years, helped develop the supporting information for the CarbonLite standards and is also now the Programme Manager of the AECB Approved Certification Group.

Eric Parks is an experienced Passivhaus architect and building physics trainer on the Coaction Certified Passivhaus Designer course, he has co-written a number of the sections of this material.

Alan Clarke is one of the UK’s most knowledgeable energy consultants and building services engineers, specialising in Passivhaus design, building on long experience of low energy and ecological construction.  His Passivhaus projects include individual and group housing, schools, community centres and offices.  In addition to design work he is involved in detailed monitoring of several of these projects which are now completed and occupied, learning invaluable lessons about the real life performance of low energy buildings.

Dr. Tina Holt trained as an earth scientist with particular focus on the causes and impacts of climate change. She has worked in education, IT and editing technical information for a broader audience. In 2011-12 she retrofitted her own home close to the EnerPHit standard and consults on domestic energy efficiency.