Energy Performance Improvement in Lebanese Family House

Given the depletion of fossil fuel resources, energy efficiency is becoming significant. As energy efficiency controls emissions, which affect the average world temperature, it is also critically vital for addressing climate change. Also, according to the generalized technique of moments estimate results, there is a significant rise in real and ideal energy consumption as a result of urbanization, but less efficiency in energy use. Due to these reasons energy efficiency is becoming increasingly important in this century. Improving the energy efficiency of existing residential buildings in Lebanon has not yet been sufficiently addressed in the latest guidelines and studies. Since the techniques of energy saving differ from one building to another, depending on the type of the existing building and the climate zone, saving strategies are difficult to generalize. This study first examines a case study in Nicosia, the capital of Cyprus, which experiences an energy crisis comparable to that of Lebanon. The study investigates into various energy-efficient improvements for Cyprus’s existing buildings, which are intended to serve as a model for the Lebanese situation. Subsequently as an example of an actual residential building type in Lebanon, this study focuses on Terrace Family Houses. The effectiveness of the improvement is then assessed by comparing the new state with the existing condition state following amelioration and the implementation of energy-efficient techniques in Lebanon. This paper aims to investigate different techniques and strategies to improve the energy efficiency of existing Lebanese family houses by emphasizing the significance of thermal transmittance of building materials in exterior wall construction. These techniques focused on applying Low-e double glazing and wall insulation to test the U-values’ impact on energy saving in the different case study apartments. In order to measure the energy performance improvement value, various tools are used: Teslo 635, which measures U-values, FLIR Thermal imaging tool, and Design Builder as energy modeling software. The paper’s outcome measures the effectiveness of the applied techniques in decreasing the consumption of energy in Lebanese Terrace Family homes. Thus, research findings could serve as a starting point to legislate rules for a National Thermal Standard and Energy Code, which could be applied to existing and new residential building designs.