--- title: "Roof Ventilator - Reviews, Revenue and Downloads in United States | Apple App Store" description: "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 com" --- # Roof Ventilator — United States > Attic Ventilation Calculator ![Roof Ventilator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/8c/f7/a9/8cf7a9fd-0440-0d27-dcca-36c3f146ccad/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [GRANARACO](https://apptail.io/developer/granaraco-wOyc) **Category:** Productivity **Rating:** 4.3/5 (6 ratings) **Price:** Free **Bundle ID:** com.granaraco.ventilation-calculator **Store:** Apple App Store **Country:** United States **Version:** 2.0.0 (released 2026-04-19) **Original Release:** 2022-02-24 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1578108810) **AppTail Page:** [https://apptail.io/app/roof-ventilator-UfTd/united-states](https://apptail.io/app/roof-ventilator-UfTd/united-states) ## Roof Ventilator Description 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 and view our privacy policy here: ## Roof Ventilator Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a2/dc/14/a2dc1412-22e9-a17e-1cd6-d6fe71f67783/01-size-attic-vents.jpg/1242x2688.png) ## Roof Ventilator Rating Breakdown in United States - 5 stars: 5 (83%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 1 (17%) ## Roof Ventilator Reviews in United States ### ***** "Saves me so much time! Why didn’t this exist before??" I can’t believe this tool didn’t already exist, it seriously saved me 30 minutes per job review in just my first day having it. I would highly recommend every roofer get their hands on this app, seriously makes ventilation simple- ventilation has always been a struggle for me- never again! -- mons3189, 2022-02-25 ### ***** "Wow!" This makes my life so easy. Definitely more than what I expected. -- bElze789456, 2022-02-25 [View all Roof Ventilator reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Roof Ventilator In-App Purchases | Item | Price | |------|-------| | Monthly Subscription | $8.99 | | Roof Ventilator Annual | $34.99 | ## Apps Similar to Roof Ventilator - [Ooma Office](https://apptail.io/app/ooma-office-dpW/united-states) - [Sales Engine](https://apptail.io/app/sales-engine-kHY/united-states) - [Contractor Link](https://apptail.io/app/contractor-link-Iiub/united-states) - [My Study Guide](https://apptail.io/app/my-study-guide-qMxh/united-states) - [Scope Defender](https://apptail.io/app/scope-defender-Jrck/united-states) - [LeadFetch](https://apptail.io/app/leadfetch-aPzm/united-states) - [Smart ChatAI-AI Bot Assistant](https://apptail.io/app/smart-chatai-ai-bot-assistant-nbIq/united-states) - [Reckon - Project Cost App](https://apptail.io/app/reckon-project-cost-app-cecr/united-states) - [Standard Plumbing VMI](https://apptail.io/app/standard-plumbing-vmi-WZEv/united-states) - [Logarithm Calculator SDG](https://apptail.io/app/logarithm-calculator-sdg-gqSv/united-states) ## Roof Ventilator Available In - [United States](https://apptail.io/app/roof-ventilator-UfTd/united-states) - [Australia](https://apptail.io/app/roof-ventilator-UfTd/australia) - [Azerbaijan](https://apptail.io/app/roof-ventilator-UfTd/azerbaijan) - [Belgium](https://apptail.io/app/roof-ventilator-UfTd/belgium) - [Canada](https://apptail.io/app/roof-ventilator-UfTd/canada) - [Switzerland](https://apptail.io/app/roof-ventilator-UfTd/switzerland) - [Chile](https://apptail.io/app/roof-ventilator-UfTd/chile) - [Colombia](https://apptail.io/app/roof-ventilator-UfTd/colombia) - [Germany](https://apptail.io/app/roof-ventilator-UfTd/germany) - [Finland](https://apptail.io/app/roof-ventilator-UfTd/finland) - [France](https://apptail.io/app/roof-ventilator-UfTd/france) - [United Kingdom](https://apptail.io/app/roof-ventilator-UfTd/united-kingdom) - [United Arab Emirates](https://apptail.io/app/roof-ventilator-UfTd/united-arab-emirates) - [Indonesia](https://apptail.io/app/roof-ventilator-UfTd/indonesia) - [South Korea](https://apptail.io/app/roof-ventilator-UfTd/south-korea) - [Kuwait](https://apptail.io/app/roof-ventilator-UfTd/kuwait) - [Malta](https://apptail.io/app/roof-ventilator-UfTd/malta) - [Norway](https://apptail.io/app/roof-ventilator-UfTd/norway) - [New Zealand](https://apptail.io/app/roof-ventilator-UfTd/new-zealand) - [Philippines](https://apptail.io/app/roof-ventilator-UfTd/philippines) - [Saudi Arabia](https://apptail.io/app/roof-ventilator-UfTd/saudi-arabia) - [Thailand](https://apptail.io/app/roof-ventilator-UfTd/thailand) - [Tunisia](https://apptail.io/app/roof-ventilator-UfTd/tunisia) - [Croatia](https://apptail.io/app/roof-ventilator-UfTd/croatia) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*