Friday, September 30, 2016

Free Building Science Calculation Tools for Energy Professionals

What's New with RED

RED launches new ASHRAE 62.2-2016 tool

RED launched the ASHRAE 62.2-2016 tool and corresponding User Guide before the official 62.2-2016 Standard was released by ASHRAE. This new version of the RED 62.2 tool is carefully based on the ASHRAE 62.2-2016 Standard, so if you use the RED 62.2-2016 tool, you can be confident of complying with the new ASHRAE 62.2 Standard. As with other RED tools, your errors are minimized because the tool expands and contracts, as needed, to keep you in compliance. Changes from the 62.2-2013 RED tool/ASHRAE 62.2 Standard include:
  • The introduction of the 62.2-2016 scope change: the Standard now includes dwelling units in all multifamily buildings, even 50-story high-rises. Previously, the Standard included only dwellings in low-rise (three stories and less above grade) buildings.
  • An infiltration credit for horizontally-attached dwellings. This includes side-by-side duplexes, triplexes, row-houses, and similar multifamily buildings.
  • The change of the term "whole-building" ventilation to "whole-dwelling" ventilation.
  • The official inclusion of the 15 CFM de minimis for existing dwellings. In other words, if the minimum required whole-dwelling ventilation rate is 15 CFM or less, whole-dwelling ventilation need not be installed in an existing dwelling unit.

Who Uses RED Calc Free Tools?

  • Home performance analysts
  • DOE weatherization energy auditors and quality-control inspectors
  • Energy auditors
  • HERS raters
  • Design professionals
  • HVAC analysts and installers
  • Building inspectors
  • Architects
  • Engineers
  • Building science researchers

First-Time Users, Start Here. . .

1. Watch this video tutorial at the RED YouTube Channel;

2. Read the Getting Started help document;

3. Use the RED Calc Free menu on the left to try any of the tools;

4. Click the "i" in the blue circle to the right of any tool name in the menu at the left for more information;

5. Click/touch any tool input or result label to see popup help when you need it; and

6. The advanced features of RED Calc FreeTM  will run on the latest versions of all common web browsers.

     Screenshot of Weather Station Data tool

Weather Station Data tool screenshot

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