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Energy Efficiency in Urban Conservation Areas

Energy Efficiency in Urban Conservation Areas Information Session on Energy Efficiency in the Building Sector 7 th October 2013 Perit Amber Wismayer B. E. & A. (Hons.) (Melit.), M. Sc. (Lond.), A. & C. E. Honorary Secretary, Kamra Tal-Periti .

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Energy Efficiency in Urban Conservation Areas

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  1. Energy Efficiency in Urban Conservation Areas Information Session on Energy Efficiency in the Building Sector 7th October 2013 Perit Amber Wismayer B. E. & A. (Hons.) (Melit.), M. Sc. (Lond.), A. & C. E. Honorary Secretary, Kamra Tal-Periti

  2. Only recognised professional body representing architects & civil engineers in Malta KTP’s administration is entrusted to its Councilwhich is supported by the Secretariatand Standing Committees

  3. ENERGY SAVING GOALS IN THE DOMESTIC SECTOR • - Policy • - Certification • Technical Advancement • Built Fabric

  4. Policy & Certification • Adequate response to climate change • Reaching standards & requirements

  5. Policy & Certification • Transposition of EU Directive on the Energy Performance of Buildings into local legislation • Legally bound to comply

  6. POLICY & CERTIFICATION Energy Performance Certificate Energy Performance of Buildings Directive, transposed to local legislation. Dwellings are assessed by a qualified person and a certificate issued.

  7. TECHNOLOGICAL ADVANCEMENT Product Seminars Through such events, KTP strives to keep the Profession AND the Public up-to-date with new and innovative products

  8. THE BUILT FABRIC What is Passive Design? • Efficient response to local climate & site; • Buildings which provides occupant comfort & low energy demand.

  9. THE BUILT FABRIC • Strategies: • Insulation & Double Glazing • Ventilation • Water Conservation • Shading • Thermal Mass

  10. THE ENERGY CONTEXT • Energy issues have gained prominence and are now pertinent topics in Maltese society • Increasing W&E Tariffs • No Renewable Energy Sources

  11. THE ENERGY CONTEXT • Residential & commercial buildings account for almost half of energy consumed in developed countries (Perez-Lombard et al., 2007) • An estimated 70% of present building stock shall exist in 2050 (Power, 2008) How can we improve the energy efficiency of these buildings?

  12. URBAN CONSERVATION AREAS Malta’s bold history produced a spectacular and unique urban landscape

  13. URBAN CONSERVATION AREAS Sites possessing a “special architectural and historical interest, the character and appearance of which it is desirable to preserve and enhance” (Malta. Planning Authority, 1990, p.81) Can we improve the energy efficiency of buildings located within UCAs?

  14. URBAN CONSERVATION AREAS • UCA properties are inherently energy efficient • Alterations aimed at adapting them to modern standards, often reduce their energy efficiency

  15. WHAT IS ECO-REFURBISHMENT?  A progression of interventions carried out with the aim of improving the Energy Efficiency of a building.

  16. ECO-REFURBISHMENT • Advantages of • Eco-refurbishment • Improved energy efficiency • Healthy internal environment • Socio-economic • benefits • Dis-advantages of • Eco-refurbishment • Cost implications & payback periods • Rebound effect • Lack of high-level support & public awareness

  17. THE MALTESE FARMHOUSE Dilapidated farmhouse in UCA, Malta

  18. THE MALTESE FARMHOUSE • Characteristics • Central courtyard and loggia • Thick double-skinned walls • Small well-positioned windows • High ceilings • Unpacked torba & deffun roofing • Basements & wells • Insular whitewashed rooms • Indigenous trees/vegetation

  19. THE MALTESE TOWNHOUSE Similar features!

  20. COMMON ALTERATIONS • Roofing the central courtyard • Enclosing the external staircase • Widening of apertures • Demolition of walls to create apertures • Glazing to internalise loggias

  21. BARRIERS TO IMPROVING EE IN UCAS • Not part of the clients’ brief • Lack of awareness regarding means to enhance energy efficiency • Proposed alterations often reduce energy efficiency

  22. THE WAY FORWARD • Strike a balance between energy efficiency, heritage conservation and modern demands • Explore innovative solutions

  23. THE CASE STUDY By looking to achieve this balance, heritage and energy may be conserved and augmented, and modern needs met successfully!

  24. CONCLUDING NOTE Passive design features in UCA buildings must be rediscovered, better understood through research, enhanced using modern resources and technologies, and adapted to work in tandem with today’s lifestyle

  25. Thank you Contact: ambwism@gmail.com

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