Tools You Need for Building Science
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RED Calc Free
RED Calc Pro
Who Uses RED Tools?
Wx Assistance (WAP)
- Energy auditors
- Inspectors
- QC inspectors
- Monitors
- Crew leaders
- Subcontractors
- Trainers
Home Performance
- Contractors
- Energy auditors
- Ventilation designers
- Inspectors
- QC inspectors
- Program designers
Utilities
- Energy auditors
- Inspectors
- QC inspectors
- Subcontractors
- Trainers
Code Enforcement, etc.
- CEOs
- Home builders
- Research analysts
- Engineers
- Building science instructors
- Homeowners
RED Calc Free Tools
Moisture
RED Calc Pro
Features
- Mobile friendly
- Works on major browsers
- Tools based on consensus codes and standards
- Autosave to RED Cloud
- Fully functional offline mode
- Advanced error reporting
- Auto-repair characteristics
- Customizable reports (PDF)
- Locking for data protection
- Custom tool and folder templates
- Math-on-the-fly calculator for inputs
- Collapsing/expanding tool sections
- Popup help (click any label)
- Step-control for input values
- Notes feature for folders and tools
- Choice of U.S and metric units
- Markdown-enabled report forms
- Detailed results info
- Multi-tab/window syncing
- Available by monthly or annual subscription, individuals or teams
Two New Tools for RED Calc Pro
RED launched two new RED Calc Pro tools — Pitot Tube Airflow and Units Calculator. Check out the tool guides: Pitot Tool Guide and Units
RED Launches ASHRAE 62.2-2019 Pro Tool
RED has launched the new RED Calc Pro tool ASHRAE 62.2-2019. The tool is based on the just-released ASHRAE 62.2-2019 Standard.
RED Calc Free and Pro Tools Available
All of the RED Calc Free tools are now available on our new website! In less than one week, we will close down our “old” website.
Best Practices for Residential Ventilation
Ventilation installation practices are usually based on ASHRAE 62.2 in the U.S., the only question being which version of this standard is used by the relevant program. ASHRAE 62.2 is a minimum standard, not a best-practice standard. As a fifteen-year member of the ASHRAE 62.2 committee, I am often asked about the best ways of exceeding the 62.2 standard for good indoor air quality.
Major Study Shows ASHRAE 62.2 Ventilation Works!
A significant research report published in April of this year by the National Center for Healthy Housing (NCHH) found that subsidized multifamily housing with ASHRAE 62.2-compliant ventilation had better indoor air quality than housing without 62.2-compliant ventilation. This important research states: “Levels of four of the five indoor contaminants improved substantially with [continuous] mechanical ventilation.”
Core Sampling Cellulose Insulation Density
It is often useful to be able to determine the installed density of dense-pack cellulose in a wall. Because the installer must work without the benefit of viewing the coverage or density, core sampling was devised many years ago to measure these important metrics. If the density is too low, the R-value and air leakage degrade. If the density is too high, insulation and labor are wasted.
