ES2: Roofs, Walls (External) and Floors - Best Practice Refurbishment Solutions for Residential Projects - Online

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Event series: "A fabric first approach to healthier more energy efficient new and existing buildings."

One of our most popular seminars offering solutions when retrofitting roofs,external walls and floors. Working with the existing fabric, traditional building materials and older methods of construction, refurbishing homes can often be as challenging as new build projects.

It requires extremely careful consideration of any intervention so that the work results in an improved building thermal performance without creating issues such as damp, mould and interstitial condensation.

The speakers from Green Register partners Ecological Building Systems are experts in the field of sustainable solutions that enhance rather than harm existing buildings.

They will set out the problems with inappropriate interventions, for example, the use of non-moisture vapour diffusion open materials and unvented air gaps behind insulation, followed by a series of sustainable solutions based on the in depth experience gained over decades of work in this field.

Delegates will learn about the various options available for refurbishing lofts, floors and ‘difficult to treat’ external solid stone and brick walls using natural insulations and products that are compatible, durable and relevant to our climate in the UK.

The presenters will be available for advice on individual projects both within the seminar and on an ongoing basis.

Programme - To include

Setting the Scene – Why retrofit
Neil Turner, Technical Sales Manager, Ecological Building Systems 
•    Indoor Air quality and Comfort
•    Moisture and its impact on buildings

Robust Solutions for Externally Insulating Solid Walls 
Ilias Igoumenidis, Technical Support Engineer, Ecological Building Systems MEng Civil Engineer, CPHD 
• Ecological External Wall Insulation Systems available for breathable construction 
• Basic performance characteristics

Roof Refurbishment 
Neil Turner, Technical Sales Manager, Ecological Building Systems 
• Upgrading the thermal performance of cold attics 
• Optimising the thermal performance of rooms in roofs
• Insulating existing roofs 
• Replacing your roof 
• Airtightness & Windtightness in roofs

Thermally upgrading Existing Floors 
Fintan Wallace, Architectural Technologist Ecological Building Systems Bsc. Arch Tech, CEPHD&T 
• Thermal Solutions for Suspended Timber Floors 
• Thermally upgrading Solid Floors


This seminar is part of a series of 3 events on IWI, Roofs Walls (External) & Floors, and Achieving airtightness. "A fabric first approach to healthier more energy efficient new and existing buildings."  

Each event can be attended as a stand alone course, or if attending the whole series they will complement each other. Please note the date for the first course in the series has now passed (15th October 2020.)

About the trainers

Ilias Igoumenidis is Technical Support Engineer at Ecological Building Systems. Born and raised in Greece, Ilias graduated from the Polytechnic school of Civil Engineers of Patras University and for many years ran his own Design and Construction company prior to moving to the UK. Since 2013, he has been heavily involved with low energy consumption in building projects. He was the first person in the Hellenic Passive House Institute to gain the International Certification of a Certified Passive House Designer. Ilias played a significant part of the first Certified Passive House project [Enerphit] in the south eastern Mediterranean area “Passivistas”. Recent projects that Ilias has been involved with include:

  • Agar Grove, London Borough of Camden, 500 affordable homes for new and existing tenants, putting energy performance and fuel poverty top of the agenda, Hawkins\Brown Architects.
  • Glen Cottage, Allonby, Cumbria, internal and external renovation of solid stone property with Diathonite Evolution system.
  • St Leonards, Chelsea, London, internal renovation with Diathonite Evolution and Calsitherm climate board systems, Richard Bayliss, Le Lay Architects & Harry Paticas, Arboreal Architecture.

Neil Turner is Technical Sales Manager at Ecological Building Systems. A BBA-competent U-value assessor, who has been involved in developing CEN (Comité Européen de Normalisation) European standards, Neil has extensive experience in the building products sector. Neil advises architects, contractors and timber frame specialists on the specification of sustainable insulation products and has been involved in numerous sustainable projects throughout the UK. Recent projects that Neil has been involved with include:

  • Bristol City Council affordable Passivhaus housing scheme with pro clima systems, Halstatt Construction and Gale & Snowden Architects
  • York Road Montpelier Bristol, internal and external renovation with Diathonite Evolution system, Andrew Dale Architects
  • Oak Meadow Primary School, Thomas Vale Construction and Cygnum pro clima
  • West Dulwich Passivhaus new build pro clima systems, RDA Architects

Fintan Wallace is an Architectural Technologist at Ecological Building Systems. Graduating from Dublin Institute of Technology in 2011 with a B.Sc (Hons) in Architectural Technology, it was here in D.I.T’s Bolton Street where Fintan developed a strong interest in low energy and Passivhaus design. From here he continued his studies becoming both a Certified European Passivhaus designer and tradesperson. Fintan has travelled to Baden Württemberg in Germany to study passive housing and sustainable energy technology, gaining significant knowledge regarding the use of natural insulations in timber frame and solid wall constructions. Latterly Fintan has been involved extensively in a deep energy retrofit of a property to the Enerphit standard in the west of Ireland. Recent projects that Fintan has been involved with include:

  • Vitsoe, CLT Factory, Gutex and pro clima systems, Waugh Thistleton Architects.
  • Chelsea Barracks refurbishment, pro clima systems.
  • Lower Royd Farm, Passivhaus refurbishment with Diathonite.

What have delegates said about previous seminars with EBS?

"Excellent ... good mix of technical and practical demonstration."
"Excellent diagrams clearly explaining the concepts and practical examples and common problem descriptions."
"Very clear, helpful and very well done!"

Working in partnership with

October 21st, 2020 9:00 AM through 12:00 PM
Online Training
United Kingdom
Event Fee(s)
Members (This event only) £ 37.50
Non-Members (This event only) £ 52.50

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