Energy efficiency building envelope upgrade#

The new recast of the Energy Performance of Buildings. The building may be considered as an example to study and optimize the benefits of higher energy efficiency together with the use of renewable energy systems. Energy efficiency of buildings is one of the basic requirements of current architectural engineering. Highly energy efficient buildings can either save primary energy or disseminate the use of the most suitable technologies to be used in new constructions. Considering the significant impact that energy consumption has, is particularly important to implement policies aimed at improving energy efficiency in buildings. The current market is able to offer a wide range of thermal systems and thermal insulation materials themselves and the right choice of thermal system or thermal insulation material is a difficult task. Nowadays some of the buildings that are realized are reaching these objectives. When talking about building envelopes, we are talking about the structure that stands between the.

To achieve this target is quite challenging. 21st Century Era of Insulation and Energy Efficiency. The new recast of the Energy Performance of Buildings Directive (EPBD) calls for all new buildings to be nearly zero energy buildings by the end of 2020. This research substantiates the performance assessment process through the identification of EnPIs.Energy efficiency of buildings is one of the basic requirements of current architectural engineering.

A retrofit strategy consists of five phases for retrofitting planning in which the second phase comprises an energy audit and performance assessment and diagnostics. It is the outcome of their perceptions of retrofitting factors and corresponding indicators. The primary outcome of the research is a priority listing of EnPIs based on the quantitative data from the knowledge-base of experts from these two groups. The respondents were divided into two groups for analysis: academician/researchers and industry practitioners. They are sold as an energy-saving product, with. A total of 280 experts were contacted globally for the survey, and 106 completed responses were received resulting in a 37.85% response rate. Radiant barriers consist of a reflective film installed over the top of attic insulation in existing homes. This was followed by concordance analysis and measure of standard deviation. The research methodology consists of a comprehensive literature review which has identified 35 EnPIs for assessing performance of existing residential buildings, followed by a ranking questionnaire survey of experts in the built-environment to arrive at a priority listing of indicators based on mean rank. The main goal of this research is to support the implementation of multifamily residential building energy retrofits through expert knowledge consensus on EnPIs for energy efficiency retrofit planning.

Energy efficiency building envelope upgrade#

Any improvement made to either the existing structure or the physical and operational upgrade of a building system that enhances energy performance is considered an energy efficiency retrofit. These indicators are distributed amongst six main factors influencing energy consumption: climate, building envelope, building services and energy systems, building operation and maintenance, occupants' activities and behaviour, and indoor environmental quality. 2Solar Energy and Building Physics Laboratory, Federal Institute of Technology in Lausanne (EPFL), Switzerland ABSTRACT: The study aims to analyse the heating and cooling demand of the An Najah university campus, and to optimize the building envelope for two selected buildings, in order to achieve energy efficiency, and make use of solar energy. The energy performance of an existing building is the amount of energy consumed to meet various needs associated with the standardized use of a building and is reflected in one or more indicators known as Building Energy Performance Indicators (EnPIs).