Domestic hot water (Section 7): minimum equipment efficiency, minimum system features.HVAC (Section 6): minimum equipment efficiency, minimum system features, limitation on reheat, limitation on fan power.Building envelope (Section 5): minimum wall insulation, minimum roof insulation, roof reflectance, minimum glazing performance.Some sections have mandatory provisions, simplified approaches, or trade-off opportunities.ĪSHRAE 90.1 includes prescriptive requirements for the following: Within the sections of the standard, there are some variations to this.
Ashrae 90.1 pdf code#
For code compliance there is Chapter 11, which compares an energy model for your building to an energy model for a barely compliant building with the same HVAC system and in the 2016 edition an Appendix G path was added that compares an energy model of your building against a baseline model based on the 2004 edition of Standard 90.1 and requires lower energy consumption that varies depending on the building type.
Performance path: A proposed building design is demonstrated (through building performance simulation) to use less energy than a baseline building built to ASHRAE 90.1 specifications.Prescriptive path: All components of the building meet the minimum standards specified by ASHRAE 90.1.In general, there are two means, or paths for building designers to comply with ASHRAE 90.1: 2 Status as an energy code and industry standard.