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Modelling Errors in EPC Ratings for Buildings with High Roof-to-Floor Ratios

Buildings with high roof-to-floor ratios, such as warehouses, atriums, and some residential lofts, present unique challenges for Energy Performance Certificate (EPC) assessments. A disproportionally large roof area relative to the floor can significantly influence heat loss, solar gain, and overall energy efficiency, potentially leading to EPC

EPC Assessment for Buildings Using Smart Phase-Change Windows with Dynamic Opacity

Smart phase-change windows (PCWs) are an innovative building technology that adjusts transparency and thermal properties in response to sunlight and indoor climate conditions. These windows can reduce cooling loads in summer and improve insulation in winter, making them highly effective for energy efficiency. However, their dynamic

The Effect of Seasonal Envelope Moisture Buffering on EPC Predictions

Buildings with moisture-buffering materials in their envelopes, such as hygroscopic walls or phase-change interior finishes, can naturally moderate indoor humidity and temperature fluctuations. While this improves occupant comfort and reduces HVAC demand, it introduces complexities for Energy Performance Certificate (EPC) modelling. 1. Understanding Seasonal Envelope Moisture

EPC Implications of Hybrid Ground-Air Heat Exchangers in Dense Urban Areas

Hybrid ground-air heat exchangers (HGAHEs) combine the benefits of ground-source and air-source thermal energy to provide efficient heating and cooling. These systems are increasingly used in dense urban areas where space and environmental constraints limit conventional HVAC solutions. However, their integration poses unique challenges for Energy

How EPC Software Treats Non-Uniform Roof Insulation with Variable Thickness?

Accurate energy performance assessment depends on correctly modelling a building’s thermal envelope. Roof insulation is a critical factor, and non-uniform insulation with variable thickness poses challenges for Energy Performance Certificate (EPC) calculations. 1. Understanding Non-Uniform Roof Insulation Non-uniform roof insulation occurs when: Insulation layers vary in

Impact of Variable Groundwater Heat Exchanger Efficiency on EPC Ratings

Groundwater heat exchangers (GWHEs) are a key component of geothermal heating and cooling systems. They transfer heat between the building and underground water sources, providing an energy-efficient solution for temperature regulation. However, variations in GWHE efficiency can significantly impact Energy Performance Certificate (EPC) ratings. 1. How

EPC Modelling Challenges for Buildings with Integrated Building-Integrated Thermal Storage (BITS) Systems

Building-Integrated Thermal Storage (BITS) systems, such as phase change materials (PCMs) and embedded water tanks, offer innovative solutions to enhance energy efficiency by storing thermal energy within the building envelope. However, accurately modelling these systems for Energy Performance Certificates (EPCs) presents several challenges: 1. Dynamic Thermal

How to Use EPC Recommendations for Effective Home Improvements?

An Energy Performance Certificate (EPC) provides a clear snapshot of your home’s energy efficiency and offers tailored recommendations for improvements. Using these recommendations effectively can enhance your home’s comfort, reduce energy bills, and increase its market value. Understanding Your EPC Report Your EPC report includes: Current

Understanding EPC Score Trends in Urban vs Rural Areas

Energy Performance Certificates (EPCs) provide valuable insight into the energy efficiency of properties, but EPC scores can vary significantly between urban and rural settings. Understanding these trends helps homeowners, buyers, and policymakers make informed decisions about energy upgrades and sustainability. Why EPC Scores Differ Between Urban

How Energy Storage Technologies Can Improve EPC Ratings?

Energy Performance Certificates (EPCs) assess the energy efficiency of properties, with a strong focus on reducing energy consumption and carbon emissions. Incorporating energy storage technologies into your home or building can play a pivotal role in boosting your EPC rating by optimizing energy use and increasing