855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 221

Extracted Content

Building type	Climate zone	Col3	Col4	Col5	Col6	Col7	Col8	Col9	Col10	Col11	Col12	Col13	Col14	Col15	Col16	Col17	Col18	Col19	Col20
Building type	0A	0B	1A	1B	2A	2B	3A	3B	3C	4A	4B	4C	5A	5B	5C	6A	6B	7	8
Hotel/motel	0.65	0.63	0.64	0.63	0.62	0.61	0.62	0.63	0.62	0.59	0.60	0.60	0.57	0.58	0.59	0.56	0.58	0.56	0.56
Office	0.54	0.54	0.53	0.54	0.49	0.52	0.49	0.52	0.45	0.46	0.52	0.47	0.48	0.51	0.48	0.48	0.50	0.45	0.49
Restaurant	0.61	0.58	0.58	0.57	0.57	0.54	0.58	0.59	0.57	0.62	0.61	0.61	0.65	0.64	0.63	0.67	0.66	0.69	0.72
Retail	0.47	0.45	0.44	0.44	0.40	0.39	0.37	0.39	0.36	0.40	0.41	0.42	0.45	0.43	0.46	0.44	0.43	0.42	0.46
School	0.52	0.53	0.53	0.53	0.51	0.51	0.53	0.48	0.46	0.43	0.48	0.47	0.45	0.49	0.46	0.46	0.44	0.44	0.48
Warehouse	0.25	0.25	0.21	0.24	0.20	0.21	0.24	0.20	0.17	0.30	0.22	0.25	0.36	0.28	0.25	0.40	0.34	0.36	0.40
All others	0.58	0.56	0.56	0.56	0.50	0.47	0.49	0.48	0.48	0.49	0.49	0.50	0.51	0.50	0.55	0.52	0.52	0.52	0.55

REQUIREMENTS EXPLAINED

Widely referenced in building codes and regulations, ASHRAE Standard 90.1 determines the minimum energy efficiency required for prerequisite compliance.

Required ASHRAE Standard 90.1 Version

The required efficiency increases for project registrations beginning in 2028, stepping up from the ASHRAE Standard 90.1-2019 to the more stringent ASHRAE Standard 90.1-2022 . Compliance with ASHRAE 90.1-2022 achieves a net average site energy savings of 14% compared to ASHRAE 90.1-2019 when including savings for prescriptively required renewable energy.

Option 1. ASHRAE 90.1-2019

Only projects registered before January 1, 2028, can use ASHRAE 90.1-2019 . Projects must apply Addendum cr, which requires a building envelope backstop for projects documented using the Energy Cost Budget Method (ECB) or Appendix G, Performance Rating Method. All other ASHRAE 90.1-2019 addenda are optional.

Option 2. ASHRAE 90.1-2022

Projects registered after January 1, 2028, must use ASHRAE 90.1-2022 .

Projects registered before January 1, 2028, can use the 2022 version of the standard to earn points under EAc3: Enhanced Energy Efficiency .

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 211