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ASHRAE Membership

ASHRAE membership is open to any person associated with heating, ventilation, air conditioning or refrigeration. ASHRAE is unique because its membership is drawn from a wide range of disciplines relating to the HVAC&R field. Over 55,000 individuals from more than 100 nations belong to the Society.

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ASHRAE members earn 15% off publications. Hundreds of titles are available including the complete collection of ASHRAE Standards including 90.1, 62.1 and 189.1.
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Standards, Research & Technology

Standard 90.1 User's Manual Software EnvStd 4.0

editedProgram corrections have been released for the EnvStd program software.

If you already have a version of the Envstd 4.0 software installed, please uninstall your current version before downloading this one, by doing the following:

  1. Make a copy of any projects you've already created,
  2. click the Add/Remove Programs in the Windows Control Panel, and select the EnvStd program to remove.

Please read the following instructions before you download the new version:

If you're using Internet Explorer, place your mouse pointer on the 'Env4_020610.exe' link and click the RIGHT mouse button. From the pop-up menu, select 'Save Target As'. Save the file 'Env4_020610.exe' to your hard drive.

If you are using Netscape Navigator, click the link with the right mouse button, and choose 'Save Link As'.

Once the file has downloaded to your hard drive, double-click the Env4_020610.exe (about 7 MB) file to start the installation in your Windows Explorer. Follow the prompts.

If your computer is attached to a network, you may need administrator privileges to install the software. Please check with your network administrator.

Env4_020610.exe (7 MB) (zipped .exe file)

If you have problems installing the program, please send email to bugcentral@ashrae.org.