High Performance Essentials: Energy Modeling & Envelope Commissioning-High Performance Essentials: Energy Modeling and Envelope Commissioning

Video Transcription

Video Summary

The video discusses precast concrete and its high-performance components, such as energy modeling and enclosure commissioning. The speakers define energy modeling and enclosure commissioning and discuss the advantages and challenges of energy modeling. They explain the core components of envelope commissioning and describe how precast concrete can be used in energy modeling and envelope commissioning. They highlight the versatility and efficiency of precast concrete and its importance in thermal efficiency, air leakage, and projected energy costs. The video also discusses the need for building enclosure commissioning and its benefits, including reducing energy consumption, lowering operating costs, improving HVAC performance, minimizing callbacks, improving occupant comfort and air quality, and managing construction defect risks. The speakers mention standards and guidelines, such as LEED, NIBS Guideline 3, and ASTM E2813, that discuss or reference enclosure commissioning. They also discuss the International Green Construction Code and other jurisdiction-specific requirements. The video includes case studies on precast concrete concerning airtightness, window leaks, and durability. The speakers highlight the results of air leakage tests on different wall types and emphasize the importance of proper design, construction, and detailing to prevent water intrusion. Lastly, the video discusses the impact of air leakage on energy use and cost savings. The speakers emphasize the significance of incorporating infiltration rates in energy modeling to achieve additional energy and cost savings. No credits are mentioned.

Keywords

precast concrete

energy modeling

enclosure commissioning

thermal efficiency

air leakage

building enclosure commissioning

HVAC performance

cost savings