A widget is a mini-application for your computer that puts common tasks in an easy-to-use format. The Metal-Era Widget features all three of Metal-Era's popular calculators:
- Wind Calculator: Determine the ANSI/SPRI ES-1 design pressure needed to be compliant with the International Building Code.
- Net Free Area Calculator: Find the NFA for your project and the necessary vent width for your Metal-Era ridge vents or vented fascia products.
- Ventilated Roof System Calculator: Learn key variables interact and impact commercial ventilation and use the graphed results to help determine the ideal airspace relative to your project's ventilation needs.
This widget allows offline access to all of these important calculators and includes printable reports of the calculation results. If you are online, you will also be able use our quick product lookup. For a brief demo of the widget, check out this video.

Download Widget
System Requirements
Supported Operating Systems: Windows 7; Windows Vista; Windows XP
Processor: 400 MHz Pentium processor or equivalent (Minimum); 1GHz Pentium processor or equivalent (Recommended)
RAM: 96 MB (Minimum); 256 MB (Recommended)
Hard Disk: The widget requires 10.1 MB of available space. Up to 500 MB of available space may be required to install Microsoft .Net 3.5 Framework (if it is not already installed).