When: Monday 4th November 2019, 6:15pm General meeting, Guest speaker at 7.30 pm
Where: Function Room (upstairs), The Duke of Wellington Hotel, 192 Macquarie Street, Hobart
Cost: Gold coin donation

Presentation: No, you can’t smoke your house (Hemp Lime Masonry Construction; the Industry, Techniques and Sustainability)
With all the buzz around the cannabis industry and its application in fibre , food and medicine, there is a growing industry worldwide using hemp as a building material. Industrial hemp as opposed to cannabis is the main source of hemp in a construction context.

This talk is to give an overview of industrial hemp and its use as a construction material in combination with lime.  How it can be incorporated in building both on a residential scale and in larger buildings and showing some pre-fab options. It will showcase a build in Waterworks Road completed early this year.

In addition we will discuss hemp lime masonry’s thermal performance, sustainability performance indicators and basic construction techniques.


Riq de Carvalho is a practicing architect and building practitioner; a trained Bushfire Planner accredited by the TFS and has training in asbestos removal ( NSW). He has been practising as an architect for over 30 years, in Tasmania, NSW & QLD. Over this period he has worked mainly in private practice, except for a 5 year contract with the University of Newcastle, as an architect on staff, managing University building projects; including an experimental house designed for earthquake/long wall mining conditions, a pre Olympic sports centre and pool, a demountable stage for the Newcastle Conservatorium concert hall and new Architecture Studios (Sullman award). In this capacity he collaborated with Peter Stutchbury, Ric lePlastrier, James Grose, EJE and GSA. During this time the campus was awarded the prime ministers inaugural Banksia award for 10 years of sustainability. He lectured in the faculty of Architecture part time for 5 years. Riq has done building inspections for Archicentre in NSW & Qld and has a pre-purchase building inspection firm in Tasmania trading as Tassie house Inspections. He has a longterm interest in sustainable, passive solar, alternative residential construction with particular interest in industrial hemp as a building material, being associated with the Australian Hemp Masonry Company.

Detlev Geard is a qualified architect, and has his own architectural design business ‘Sustainable Architecture and Solar’. He has a strong interest, based on over 20 years of his career, on solar architecture and environmentally friendly housing design. He was a founding member of the Australian Solar Energy Society (now Smart Energy Council) and is a member of the Passive House Association. He gained a PhD in architecture and building science, studying the influence of thermal mass and different types of construction materials on building energy efficiency.

We hope to see you at the meeting. All welcome.


Renew Tas South branch

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