Event Description

This two-part training presents updated content covered in the Building Envelope Parts 1-3 trainings offered in the Fall/Winter 2024 Stretch Energy Code Training Series. This training is intended for new construction and existing building alterations and additions following the 225 CMR 23.00 Commercial Stretch Energy Code. Case studies and real-world calculation examples will reinforce key concepts, and attendees will apply the

Part 1: Fundamentals of the Code for Building Envelope
To achieve Massachusetts’ net zero emissions goals, practitioners must prioritize building envelope design to reduce loads effectively. This course focuses on the prescriptive envelope requirements outlined in the 225 CMR 23.00 Commercial Stretch Energy Code and the fundamental principles of passive design, including air tightness, continuous high thermal layers, and condensation control. Participants will learn methods for determining U-factors of assemblies and best practices for documenting and specifying building envelopes early in a project to ensure compliance.

Part 2: Advanced Thermal Performance & Derating in Building Envelopes
Building on the principles introduced in Part 1, this session delves into thermal bridging and its impact on building performance. Participants will explore different types of thermal bridges and learn methods for derating assemblies to account for clear field, linear and point thermal bridges. The course will also cover steps for performing U-factor calculations that incorporate derating adjustments, as well as the hygrothermal considerations necessary for durable and high-performing envelope assemblies.