Existing Buildings Part 3 Alterations

Part 3: 2023 Residential Existing Buildings, Alterations (1 hour) Part 3 of this course covers how an alteration is impacted by the new energy code. When does an alteration require a HERS rating and when is it not needed. Part 3 of this course covers the HERS process and requirements. What is a passing score for an alteration? How does solar readiness apply to alterations? Do all alterations need blower door testing? Examples of different types of alterations are used in the course to show when a HERS rating is needed and not needed.