PR2002

This paper outlines the Europrosper project whose objectives are to :1. Consolidate and where appropriate harmonise methodologies for energy certification of existing office buildings across 6 European countries whilst allowing customisation in each country to accomodate existing techniques and national contexts2. Develop training courses to instruct practitioners on how to use the certification methods, to include self-certification procedures3. Conduct a demonstration phase and4.

Constructional aspects and the use of school building had led to moisture and mold damages confirmed by microbiological analysis from material, surface and air samples. Cultivation methods were used to assess mesophilic fungi and actinobacteria. High concentrations of microbes (10 5 -10 6 cfu/g in different materials) were recovered from the samples. Microbes included great variety of moisture indicating species (e.g. Aspergillus versicolor, Trichoderma, Fusarium, Stachybotrys, Chaetomium, Streptomyces).

This paper presents an approach to evaluate the sensitivity of a roof design to condensation problems, given the uncertainty to achieve continuity of airtightness in practice. The approach consists of a repeated number of simulations with a 2D heat, air and vapour transfer model to predict the variation in roof moisture performance due to various discontinuities in roof geometry. The set of discontinuities is calibrated by comparing measuring data of roof airtightness to simulation results.

Swedish dwellings often have mechanical ventilation with an almost constant air flow independent of variations in loads. The performance of these ventilation systems is often not satisfying. The occupant habits have changed e.g. increased moisture load. Therefore a technical procurement for energy efficient demand controlled ventilation systems was initiated. First the building regulations were analysed, then the parameters relevant for indoor air quality in dwellings and the energy efficiency potential were determined.

Within an Italian Experimental Programme an interdisciplinary research for the retrofitting of some residential buildings in the surrounding of Florence has been carried out. The activity of the experimental research concerns the methodological and scientific support to the technical solutions for the restoration of two buildings.

The transformation of the Conservatorio San Giuseppe , into the Cospicua Residential Home for the Elderly has become a landmark in the neighbourhood. It brings past and present together with its old church and stepped new development incorporating a colourful orange windbreak. It is an example of how an old building, originally an orphanage for girls, with limitations of location and orientation could be rehabilitated to incorporate energy efficient features. Both the original structure and the new construction are load bearing with a high thermal mass to utilise a direct gain system.

The Portuguese National Museum for Archaeology is undergoing an expansion and retrofitting. It is currently housed in one of the most important ancient monuments in Portugal: the Monastery of Jernimos. The authorities responsible for the museum, taking advantage of this retrofitting, decided to promote a modern and integrated design of the future archaeological museum. The architectural design aims to combine, aesthetically, the old and the new building, promoting sustainable architecture and energy efficiency (concerning, essentially, indoor climate, lighting and acoustical requirements).

Reconstruction of late 19 th century building for new Slovene Ethnographic Museum is presented. Interventions into building envelope and heating, cooling and lighting system from exhibits and visitors comfort and rational use of energy point of view were treated in the framework of EU and SI research programmes. An innovative heating-cooling system have been designed and tested.

The fine filter (EU7) was included in the ventilation system which operated at full capacity only during working days. The first three months the filter was located in the ventilation system of the office building and it was later moved for one month period into the laboratory chamber. The aim of the study was to investigate whether particles or microbes are released from the filter during the turn off and start up of the fan. The released particle (size range of 0.3 m) concentration was below 10 #/dm 3 in normal field conditions.

A important part of educational buildings must be retrofitted in many European countries, in the next years, for historical and demographic reasons. These retrofittings must be carried out with a limitation of energy consumption and a better indoor comfort. In this context, Annex 36 of International Energy Agency aims at promoting energy efficient measurements of educational buildings in the retrofitting process. In the same time, in France, decision makers want to integrate high environmental quality comfort requirements.