Roofing professionals can now take Air Vent’s useful attic ventilation tools on the go with the new FREE App. The interactive  Attic Ventilation Calculator figures the exact quantity of intake and exhaust vents needed for any attic size. And you can email the results to a client. The Roof Pitch Tool confirms if the vent being considered for the project is compatible – not to mention if the amount of ventilation needs to increase. Use the “location address” and “camera” features to customize a photo for a proposal. Direct links to product specs, videos and industry articles to support any ventilation project are also included. The App is available for Android and IOS systems courtesy of the company that brings you the Ask the Expert™ seminar. For more information, visit