Event Description

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 their knowledge through hands-on exercises with a sample project.

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 1 Objectives:

1. Understand the prescriptive envelope requirements of the 225 CMR 23.00 Commercial Stretch Energy Code.

2. Learn methods for determining U-factors of assemblies.

3. Explore best practices for documenting and specifying building envelopes early in a project to ensure compliance.

4. Analyze case studies that demonstrate compliance and performance.

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.

Part 2 Objectives:

1. Identify different types of thermal bridges and their impact on building performance.

2. Learn methods for derating assemblies to account for thermal bridging.

3. Understand how to perform U-factor calculations that incorporate derating adjustments.

4. Explore hygrothermal considerations of assemblies.

5. Analyze case studies that demonstrate performance implications of thermal bridging.

This training is eligible for 5 AIA LU / HSW continuing education credits to trainees who attend both Parts 1 and 2. AIA membership information will be collected from attendees by BE+ during Part 1 of the training.