Improving a building’s envelope is one of the easiest ways to increase energy efficiency. Richard Watson, former chair of the ASHRAE 90.1 Committee, states, “A high-performing building envelope can significantly decrease heating and cooling loads, even with modest investments.” ASHRAE leads the charge in creating these changes, particularly for commercial spaces.
What is ASHRAE?
The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) sets the benchmark for building efficiency. Its standards cover everything from ventilation to energy use, ensuring structures are not only efficient but also environmentally responsible.
Why ASHRAE Standards Matter
- Energy Efficiency: These standards establish benchmarks to cut energy consumption and operating costs.
- Regulatory Compliance: Many building codes rely on ASHRAE standards to meet legal requirements.
- Sustainability: Following ASHRAE standards helps buildings shrink their carbon footprint while saving on energy bills.
A Quick History of ASHRAE
- Early Days: Founded in 1894 as the American Society of Heating and Ventilating Engineers, ASHRAE began by standardizing heating and ventilation. It merged with the American Society of Refrigerating Engineers in 1959, covering HVAC&R fully.
- Energy Focus: In the 1970s, ASHRAE shifted toward energy efficiency, introducing Standard 90 — the precursor to the now essential Standard 90.1.
ASHRAE 90.1: The Backbone of Energy Codes
ASHRAE 90.1, titled “Energy Standard for Buildings Except Low-Rise Residential Buildings,” lays out the minimum energy-efficiency standards, updated regularly to incorporate the latest technology. States like California and Massachusetts integrate it into their energy codes to meet or surpass federal goals.
- Adoption by States: Several states currently go beyond the 90.1-2019 version, enforcing stricter energy standards.
- Federal Mandates: Federal buildings must comply with ASHRAE standards, ensuring consistency nationwide.
Image 1: Map of U.S. Energy Codes
U.S. Energy Codes 2024 (cove.tool)
Why ASHRAE Standards Keep Changing
Updates to ASHRAE standards reflect the latest in building science and technology. Here’s how they’ve evolved:
- ASHRAE 90.1-2013: Added requirement for continuous insulation
- ASHARE 90.1-2016: Introduced new lighting controls and thermal envelope criteria.
- ASHRAE 90.1-2019: Raised the bar on insulation and energy efficiency.
- ASHRAE 90.1-2022: Set even stricter standards, aiming for net-zero buildings by 2030.
Implementing ASHRAE Standards
The Department of Energy (DOE) reviews each new version to confirm energy savings. States then adopt or adjust the standards based on local needs. While some states stick to the latest codes, others tailor older versions for their climate and resources.
Exceeding Standards with GreenGirt CMH™ and SMARTci® Systems
GreenGirt CMH and SMARTci go beyond simply meeting code — they offer a way to future-proof buildings against evolving standards.
GreenGirt CMH continuous insulation and SMARTci building enclosure systems help professionals meet and surpass ASHRAE standards.
- GreenGirt CMH: This continuous insulation system eliminates thermal bridging, a major source of energy loss. With its durable composite metal hybrid material, it resists corrosion and ensures long-term performance, reducing operating costs.
- SMARTci: An all-in-one building enclosure system combining continuous insulation with air and water barriers, it simplifies compliance by delivering top-tier thermal performance and moisture control.
Conclusion
ASHRAE standards are pivotal in steering the construction industry toward more sustainable practices. Systems like GreenGirt CMH and SMARTci make compliance easier and future-proof buildings against evolving codes. By adopting these advanced solutions, you’re not just meeting standards — you’re setting new ones.
Stay informed on the latest codes through the U.S. Department of Energy’s Building Energy Codes Program and the ASHRAE website. Visit our website to explore GreenGirt CMH and SMARTci systems.
