In addition, a reference was added to ASHRAE Standard 140 for the method of testing simulation programs.” Many of these changes may affect the ultimate performance rating of buildings using Appendix G.
#ASHRAE 90.1 2007 WINDOWS#
The baseline building performance is used establish the minimum energy performance requirements for a LEED project.Īppendix G states: “This addendum clarifies how windows should be distributed in the baseline simulation model and how uninsulated assemblies should be treated in the baseline simulation model, increases the size range for the use of packaged VAV systems in the baseline model, and provides more detail on how service hot water systems should be modeled. Are single/multi family residential unite of less than three stories above grade.Provisions DOES NOT apply to building envelopes of buildings that: Systems include HVAC, Service Water Heating, Electric Power Distribution and Metering, Electric Motors and Lighting.Provisions apply to building envelopes of buildings that: The purpose of the document is to provide minimum standards for energy efficient buildings for both new and existing buildings. It permits a comparison of energy performance, given proposed energy efficiency measures, with the baseline.ĪSHRAE 90.1-2007 is continually updated through approved addenda, which are regularly posted on the ASHRAE (American Society for Heating, Refrigeration and Air Conditioning Engineers) and IESNA (Illuminating Engineers Society of North America) websites. An energy simulation model, or energy model, is a computer-generated representation of the anticipated energy consumption of a building.The baseline building performance is the annual energy cost for a building design intended for use as a baseline for rating above standard design.ASHRAE 90.1-2007 is the primary document for establishing the BASELINE BUILDING PERFORMANCE standard for the whole building energy simulation.