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Natural Ventilation and Air Infiltration in Large Single‑Zone Buildings: Measurements and Modelling with Reference to Historical Churches.
Natural ventilation is the dominating ventilation process in ancient buildings like churches, and also in most domestic buildings in Sweden and in the rest of the world. These buildings are naturally ventilated via air infiltration and airing. Air infiltration is …
Hygrothermal simulation of cathedral ceiling roofs with ventilated roofing tiles.
Purpose: The surface temperature of the sub-roof beneath the ventilation layer and the tiles is one of the most important factors for the hygrothermal performance of pitched roofs. The air layer between tiles and sub-roof and the air exchange with …
Airtightness, air exchange and energy performance in historic residential buildings with different structures
Old buildings that represent and maintain historic values often have poor indoor conditions and energy efficiency. The aim of this work was to evaluate the influence of building structures on airtightness and energy performance of certain historic building types. In …
Energy and economic analysis on retrofit actions for Italian public historic buildings
According to the recent EU Directives on building energy efficiency, the Italian government is paying particular attention to energy refurbishments of buildings by enacting energy measures and obtaining significant results. In particular, the Italian government is providing economic incentives to …
Passive house renovation of Swedish single-family houses from the 1960s and 1970s: Evaluation of cost-effective renovation packages
Single-family houses (SFHs) constructed between 1961 and 1980 account for approximately one-third of the total energy use, 31 TWh, for space heating and domestic hot water in Swedish SFHs. These are responsible for about 40 percent of the total energy …
Energy retrofit of historic buildings in the Mediterranean area: the case of the Palaeontology Museum of Naples.
This paper aims to identify some optimal system solutions for the energy refurbishment of a specific historic building, through energy simulations in dynamic conditions performed with a suitable software. The analysis is carried out by the evaluation of energy requirements …
Are the dwellings of historic Mediterranean cities cold in winter? A field assessment on their indoor environment and energy performance.
Although European heritage buildings are excluded from energy efficiency targets, it would be beneficial to include the largest group, that of listed housing, in energy retrofit plans, in order to encourage its occupation and contributing to the sustainable maintenance of …
Characterization and thermal performance evaluation of infrared reflective coatings compatible with historic buildings.
Two infrared reflective coatings recently developed as part of the EFFESUS European research project are characterized and evaluated in this paper. Thermal performance, durability, compatibility with historic fabric, and reversibility are all analysed. The results of extensive research that include …
Assessing the Myths on Energy Efficiency When Retrofitting Multifamily Buildings in a Northern Region – What is true and what is not?
In the light of EU’s requirements to achieve a major cut in energy use by 2050, Sweden has the same target. The built environment must by 2020 reduce energy use by 20 and 50 % by 2050. The size of …
Long Term WSN Monitoring for Energy Efficiency in EU Cultural Heritage Buildings
Historic buildings are a distinctive and invaluable characteristic of numerous European cities, and living symbols of Europe’s rich cultural heritage. However, today, EU cultural heritage buildings are contributing huge percentage to the greenhouse gas emissions. This has led to the …
Building age as an indicator for energy consumption.
Current energy consumption estimates for building stocks rarely use measured data. Calculated data of supposed representative buildings are extrapolated to a wider building stock. Conclusions drawn about supposed similar energy consumption levels risk being misleading when considering older buildings. The …
Optimal energy retrofit plan for conservation and sustainable use of historic campus building: Case of cultural property building.
In the past several decades, global population growth and rapid economic development have resulted in significant increases in building energy consumption. To reduce green house gas emissions and building energy consumption, building materials and energy technologies must be optimized. Building …