Artificial intelligence (AI) policy: ASHRAE prohibits the entry of content from any ASHRAE publication or related ASHRAE intellectual property (IP) into any AI tool, including but not limited to ChatGPT. Additionally, creating derivative works of ASHRAE IP using AI is also prohibited without express written permission from ASHRAE.

Close
logoShaping Tomorrow's Built Environment Today

Interpretation For Standard 90.1-2007

Share This

NOTE: All documents linked from this page are in pdf_icon.png PDF-format.

pdf_icon.png Interpretation 90.1-2007-1 - October 1, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5.4.3.2, regarding exceptions to the mandatory provisions for air leakage for fenestration and doors.)

pdf_icon.png Interpretation 90.1-2007-02 - October 3, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 11.3.2, regarding HVAC system type and related performance parameters for the budget building design.)

pdf_icon.png Interpretation 90.1-2007-03 - October 3, 2009 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.2.2, regarding unmet load hours for the proposed design and baseline building designs.)

pdf_icon.png Interpretation 90.1-2007-04 - March 5, 2010 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.5.1 and Table 9.5.1, regarding building are type(s) and gross floor area used to calculate the interior lighting power allowance by the Building Area Method)

pdf_icon.png Interpretation 90.1-2007-05 - January 23, 2010 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections G3.1.1 and Tables G3.1 and G3.1.1.A, regarding how to apply Exceptions a, b, c, and d in determining Baseline System for large warehouses.)

pdf_icon.png Interpretation 90.1-2007-06 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.1.1, Exception (c), regarding the exception for health or safety lighting.)

pdf_icon.png Interpretation 90.1-2007-07 – October 22, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 5.8.2.4, 5.8.2.5 and A8, regarding U-factor and Solar Heat Gain Coefficient for fenestration.)

pdf_icon.png Interpretation 90.1-2007-08 – October 21, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 9.4.1.1. and 9.4.1.2 and Appendix G (Table G3.1), regarding minimum lighting control requirements and Appendix G credit for lighting controls.)

pdf_icon.png Interpretation 90.1-2007-09 – January 22, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.3.1, regarding heat pump operation.)

pdf_icon.png Interpretation 90.1-2007-10 – March 30, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5.4.3.4, regarding vestibules and Exceptions f and g.)

pdf_icon.png Interpretation 90.1-2007-11 – March 31, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Table G3.1.1A, regarding Baseline HVAC System Types.)

pdf_icon.png Interpretation 90.1-2007-12 – June 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 11.1.2, Table 11.3.1, and Table G3.1, regarding baseline and proposed simulations for compliance.)

pdf_icon.png Interpretation 90.1-2007-13 – June 23, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 9.5 and 9.6, Tables 9.5.1 and 9.6.1, regarding Baseline Lighting Power Density in Retail Banks.)

pdf_icon.png Interpretation 90.1-2007-14 – December 11, 2012 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.3.10, regarding Chilled-Water Pumps (System 7 & 8).)

pdf_icon.png Interpretation 90.1-2007-15 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 and Table G3.1.1.A, regarding Baseline HVAC System Type.)

pdf_icon.png Interpretation 90.1-2007-16 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 and Table G3.1.1A, regarding Baseline HVAC Systems for mixed use buildings.)

pdf_icon.png Interpretation 90.1-2007-17 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections G1.2, G3.1.1 and G3.1.2.10, regarding the modeling of HRV in Baseline HVAC Systems.)

pdf_icon.png Interpretation 90.1-2007-18 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 6.4.3.9, regarding Ventilation Controls for High-Occupancy Areas.)

pdf_icon.png Interpretation 90.1-2007-19 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.2.2.3 Exception (a) and Section 9.6.2(a), regarding display or accent lighting in museums.)

pdf_icon.png Interpretation 90.1-2007-20 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.4.5, regarding facade lighting.)

pdf_icon.png Interpretation 90.1-2007-21 – March 7, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.4.1.1 Exception c, regarding the exception where automatic lighting shutoff would endanger the safety or security of the room or building occupant(s).)

pdf_icon.png Interpretation 90.1-2007-22 – October 18, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Appendix G, regarding building envelope values for the baseline case.)

pdf_icon.png Interpretation 90.1-2007-23 – October 18, 2013 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 3, 8.4.1.1 and 8.4.1.2, regarding feeder conductor voltage drop.)

pdf_icon.png Interpretation 90.1-2007-24 – January 20, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5 and Tables G3.1 and 5.5, regarding Appendix G Modeling requirements for the proposed and baseline building.)

pdf_icon.png Interpretation 90.1-2007-25 – June 30, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 2.3c and 3, regarding the requirements for a greenhouse installed on the roof of a commercial building.)

pdf_icon.png Interpretation 90.1-2007-26 – June 26, 2011 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.2.4, regarding fan system operation.)

pdf_icon.png Interpretation 90.1-2007-27 – October 16, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section A6.3.2 and Table A6.3, regarding the F-factor for slab-on-grade floors.)

pdf_icon.png Interpretation 90.1-2007-28 – October 17, 2014 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 and Table G3.1.1A, regarding the baseline system type and description.)

pdf_icon.png Interpretation 90.1-2007-29 – January 26, 2015 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Informative Appendix G, regarding baseline HVAC systems for mid- to high-rise multifamily residential corridor make-up air units.)

pdf_icon.png Interpretation 90.1-2007-30 – March 11, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.3.12, regarding supply air temperature reset (Systems 5 through 8).)

pdf_icon.png Interpretation 90.1-2007-31 – March 11, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section G3.1.1 Exception b and Table 3.1.1B, regarding Baseline HVAC System Type & Description.)

pdf_icon.png Interpretation 90.1-2007-32 – June 25, 2016 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.4.1.1, regarding automatic lighting shutoff.)

pdf_icon.png Interpretation 90.1-2007-33 – April 20, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2007, Sections G3.1.3.5, G3.1.3.10, and G3.1.3.11, regarding chilled water / hot water loop control and pump control.)

pdf_icon.png Interpretation 90.1-2007-34 – April 20, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 9.6 and Table 9.6.1, regarding Lighting Power Densities –Space by Space Method of Calculating Interior Lighting Power Allowance.)

pdf_icon.png Interpretation 90.1-2007-35 – June 25, 2017 (Refers to the requirements presented in ANSI/ASHRAE/IES Standard 90.1-2007, Sections 6.5.3.1.1 and 6.5.3.1.2, regarding Nameplate Motor Horsepower requirements when no nameplate Motor Power is available on the motor.)

pdf_icon.png Interpretation 90.1-2007-36 – January 21, 2018 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Sections 5.4 and G1.2, regarding mandatory requirements for the Performance Method.)

pdf_icon.png Interpretation 90.1-2007-37 – April 7, 2018 (Refers to the requirements presented in ANSI/ASHRAE/IESNA Standard 90.1-2007, Section 5.4.3.4, regarding the distance between doors in a vestibule.)

Close