PROCEEDINGS OF ONE-DAY SEMINAR - The energy future of existing buildings in Brussels: between preservation and performance - 11/12/14 - (Page 48)

ONLINE BRUSSELS HERITAGE - ONE-DAY SEMINAR - 11/12/2014 FINANCIAL IMPACT OF ENERGY EFFICIENCY MEASURES IN LE LOGIS AND FLORÉAL JONATHAN FRONHOFFS BUREAU CENERGIE CVBA TWO HOUSES IN THE GARDEN CITY LE LOGIS AND FLORÉAL WERE EXAMINED. THE GATHERED DATA WERE EXTRAPOLATED AND A MODEL CREATED WHICH CAN BE APPLIED TO OTHER BUILDINGS IN THE GARDEN CITY. A HIERARCHY OF INTERVENTIONS WAS DRAWN UP IN RELATION TO THEIR IMPACT ON ENERGY CONSUMPTION AND RETURN ON INVESTMENT TIME. In the course of this study two buildings were audited: a threefaçade building on Kruisbooglaan and a two-façade building on Ibissenstraat. They were examined in order to extrapolate energy saving measures for the entire garden city at a later time. The measures of course fit into the management plan; a link is made between the audit and the management plan. For example, the course of the ventilation tube is clearly marked, through the roof or through the side façades, in particular colours. Firstly, all losses through the building shell and the characteristics of each building were analysed (fig. 1 and 2). The roof of the Ibissenstraat building was not insulated and 75% of the energy loss was found to take place through the roof. The opposite is true for the Kruisbooglaan: the roof was insulated and we ascertained that a large portion of the losses occurred through the façades. This is a three-façade building so it is logical that a higher Fig. 1 Ibissenstraat 5 in WatermaalBosvoorde (A. de Ville de Goyet, 2015 © GOB). Fig. 2 Kruisbooglaan 34 in WatermaalBosvoorde (A. de Ville de Goyet, 2015 © GOB). Ibissenstraat 5 Kruisbooglaan 34 Heated 190 m² 137 m² Volume 338 m³ 475 m³ approx. 1930 approx. 1930 / / Built Most recent major renovation Fig. 3 Buildings studied (© Cenergie). 48 | Financial impact of energy efficiency measures in Le Logis and Floréal

Table of Contents for the Digital Edition of PROCEEDINGS OF ONE-DAY SEMINAR - The energy future of existing buildings in Brussels: between preservation and performance - 11/12/14

Contents
EDITORIAL
A WORD OF WELCOME
WHAT ARE THE REQUIREMENTS FOR THE ENERGY PERFORMANCE OF BUILDINGS WHEN RENOVATING?
ARCHITECTURAL HERITAGE AND ENERGY PERFORMANCE: COMPATIBILITY CHALLENGES?
URBAN FORMS, TYPOLOGY AND IMPROVING THE ENERGY EFFICIENCY OF OLD BRUSSELS BUILDINGS
THE LISTED HOUSES OF THE LE LOGIS AND FLORÉAL GARDEN CITIES ADAPTATIONS TO CURRENT ENERGY AND COMFORT NEEDS
FINANCIAL IMPACT OF ENERGY EFFICIENCY MEASURES IN LE LOGIS AND FLORÉAL
ANALYSIS OF UNCERTAINTIES IN DYNAMIC THERMAL SIMULATIONS FOR OLD HOUSING: A CASE STUDY OF ONE APPARTMENT AND ONE HOUSE IN THE PARIS REGION
RISK ANALYSIS FOR APPLYING INTERIOR INSULATION IN HISTORICAL BUILDINGS: A CASE STUDY OF THE FORMER VETERINARY SCHOOL IN ANDERLECHT
IEDER ZIJN HUIS: THE RENOVATION OF A MODERNIST SOCIAL HOUSING TOWER BLOCK
HE BRUNFAUT TOWER: PRESENTATION OF THE CONCEPTUAL DESIGN CHALLENGES OF A RENOVATION
PRESENTATION AND RESULTS OF THE “PLAGE” PROJECTS LOCAL ACTION PLANS FOR ENERGY MANAGEMENT
THE BELGIAN BUILDING RESEARCH INSTITUTE: A CONTRIBUTION TO HERITAGE MAINTENANCE EXPLORING THE TRAINING OF HERITAGE ADVISORS SPECIALISING IN ENERGY
SUSTAINABLE RENOVATION OF A BRUSSELS HOUSE: A CHALLENGE FOR BUILDING TRADESMEN
CONCLUSION
COLOPHON

PROCEEDINGS OF ONE-DAY SEMINAR - The energy future of existing buildings in Brussels: between preservation and performance - 11/12/14

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