Roof Ventilator
GRANARACO LLC Productivity iPhoneiPadiPod touch
Roof Ventilator is a free Productivity app for iPhone and iPad by GRANARACO LLC. Rated 4.3/5 from 6 ratings. Requires iOS 15.1. Updated April 19, 2026.
- Rating
- 4.3
- 6 ratings
- Price
- Free
- on the App Store
- Size
- 47 MB
- Age 4+
- Updated
- Apr 19
- 2026 · v2.0.0
Screenshots
About Roof Ventilator
Our application uses two inputs (one required): Attic Space Net Free Area and Intake Ventilation Net Free Area. You will have to calculate those two inputs on your own. Once the calculations are complete, enter the inputs into the application and find instant pertinent information calculated by our application that helps design your ventilation system to be within building code limits. Roof attic vent calculator Provides: -All code requirements per your attic space size based on the range of 1/300-1/150 -How many exhaust vents, or linear footage ridge vent need to be installed to be within code range and function; take a screenshot and print! We even used a white background as not to waste printer ink. -Lets you know if your current ventilation system is within code range -The amount of needed changes you need to get within code range -Amounts (pieces or linear feet) of different types of products (rvo-38,AF-50, multiple ridge vents, birdholes, soffit vents, roof top intake strip vent) required to achieve balance of Intake Net Free Area and Exhaust Net Free Area, as well as notifications as to whether or not your system will function. -Complete with a work backwards section that allows your roofers, or you, to enter the current amount of vents and notify you if it is within building code range and has enough Intake net free area. - Has a modified ventilation system section, "New Total NFA," that tells you if your additional added Intake NFA fits within the building code range and subsequently provides you with the needed ventilation products and the amount required to provide a functional system. A full subscription is required to access the calculator, all subscriptions come with a 7-day free trial. Please review the terms of use (EULA) at http://roofventilatorapp.com/terms-of-use and view our privacy policy here: https://roofventilatorapp.com/privacy-policy
Ratings & reviews
4.3
6 ratings
What’s new
Version 2.0.0 · Updated April 19, 2026
Subscription costs
App privacy
The developer, GRANARACO LLC, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data
Used for: Analytics
Alternatives to Roof Ventilator
Looking for apps like Roof Ventilator? Here are 6 similar apps on the App Store. The highest rated is Ooma Office (4.9/5), and all 6 are free to download.
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RemoteMeasure
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iRoofing Phone App
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SalesPro, formerly Leap
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Canvass: Sales Tool
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Glacier App
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Ooma Office
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Roof Ventilator | 4.3 / 5 (6 ratings) | Free | April 19, 2026 | |
| RemoteMeasure | 3.0 / 5 (4) | Free | Jul 13, 2026 | Compare |
| iRoofing Phone App | 4.5 / 5 (40) | Free | Oct 13, 2026 | Compare |
| SalesPro, formerly Leap | 4.6 / 5 (4,272) | Free | Oct 12, 2026 | Compare |
| Canvass: Sales Tool | 4.2 / 5 (146) | Free | Oct 22, 2026 | Compare |
| Glacier App | 4.3 / 5 (302) | Free | Oct 22, 2026 | Compare |
| Ooma Office | 4.9 / 5 (9,529) | Free | Oct 13, 2026 | Compare |
Compare Roof Ventilator with the top alternatives: ratings, updates, ASO score and keyword gaps →