Covers reading PAS 2035 retrofit designs, applying SAP and RdSAP energy performance data, and spotting U-value and thermal bridging risks.
This course equips learners with the skills to assess retrofit design documentation and interpret energy performance data. It introduces key methodologies like SAP and RdSAP, and provides guidance on evaluating technical specifications, identifying potential design flaws, and applying performance insights to support compliant, effective retrofit delivery.
Retrofit design, PAS 2035 & PAS 2030, Medium-Term Improvement Plan (MTIP), Energy Efficiency Measures (EEMs), U-values, SAP & RdSAP, Thermal bridging, Retrofit design validation, Specification compliance
You’ll gain a clear understanding of SAP (Standard Assessment Procedure) and RdSAP (Reduced Data SAP)—two UK methodologies used to evaluate building energy performance. This lesson compares their use cases, accuracy, and relevance to EPCs and MTIPs, helping you identify when and how to apply each during the retrofit planning and design process.
This lesson breaks down what’s required in a PAS 2035-compliant retrofit design, including technical specifications, sequencing of EEMs, ventilation and airtightness strategies, and coordination between the retrofit designer and coordinator. You’ll understand how designs are tailored to properties, how designs can be adjusted for funding or feasibility, and what qualifications are needed for designers.
Explore the role of U-values in retrofit performance, material selection, and regulatory compliance. Through design examples and case studies, you’ll understand how poor insulation, inconsistent installation, or material changes can lead to thermal bridging and performance failure. You’ll also learn to evaluate risks and make decisions based on technical data.
