Privacy Policy
Last Updated: October 2026
ExteriorCalc is committed to transparent, privacy-first web utilities. We provide free exterior construction estimation tools designed to run directly in your browser without requiring account registration, passwords, or personal profiles.
1. Local Calculator Execution
When you input building dimensions, roof pitches, gutter lengths, or attic ventilation measurements into our calculators:
- All mathematical operations execute locally in your web browser client.
- We do not transmit, catalog, or store your project dimensions or custom calculation inputs on our servers.
- ExteriorCalc does not sell, rent, or trade your personal information.
2. Cookies and Similar Technologies
We distinguish between local client storage used for site functionality, analytics tools used to measure traffic, and third-party technologies associated with online advertising:
- Client Storage (localStorage): We use browser
localStorageto remember non-sensitive display preferences, specifically your selected theme mode (dark or light mode). This is not an HTTP cookie and does not track you across other websites. - Analytics Cookies & Identifiers: We use Google Analytics to collect aggregated, pseudonymized usage metrics (described in Section 3 below). Google Analytics sets cookies to distinguish unique users and throttle request rates.
- Advertising Cookies & Identifiers (When Advertising Is Enabled): When advertising is enabled on this website, third-party advertising vendors, including Google, use cookies, web beacons, or similar technologies to serve advertisements, measure ad performance, and understand ad interactions based on a user's prior visits to this website or other websites on the internet.
3. Analytics & Usage Telemetry
We utilize Google Analytics (provided by Google LLC) to measure website traffic, monitor page performance, understand tool utilization, and improve our calculators.
Google Analytics collects technical information such as your browser type, device category, approximate geographic region (derived from IP address), referring pages, and interactions on our site. Google processes this information on our behalf in aggregated form. You can learn more about how Google processes information by reviewing How Google uses information from sites or apps that use our services. Visitors may opt out of Google Analytics tracking across the web by installing the official Google Analytics Opt-out Browser Add-on.
4. Third-Party Advertising & Google AdSense
ExteriorCalc intends to support its free utilities through online advertising. When advertising is enabled on this website, ExteriorCalc and its advertising partners, including Google, may use cookies, web beacons, and unique device identifiers to:
- Serve advertisements to visitors based on prior visits to ExteriorCalc or other websites on the Internet.
- Measure advertising performance, viewability, and reporting metrics.
- Understand user interactions with advertisements and prevent fraudulent traffic.
- Provide personalized or non-personalized advertising where applicable, subject to user consent and applicable legal requirements.
Google's use of advertising cookies enables it and its partners to serve ads to our users based on their visit to our sites and/or other sites on the Internet. Users may opt out of personalized advertising by visiting Google's Ads Settings. Alternatively, users can opt out of a third-party vendor's use of cookies for personalized advertising by visiting aboutads.info or Your Online Choices (for European users).
For detailed information on how Google manages data in its advertising products, please consult Google's official privacy resource: How Google uses information from sites or apps that use our services.
5. Voluntary Contact Form & Communications
Submitting inquiries through our website is entirely voluntary. If you choose to contact us via our Contact Page or by sending an email:
- Information Collected: We collect only the information you voluntarily provide, which includes your name, email address, inquiry topic, related calculator (if specified), and message details.
- Purpose of Processing: This information is used solely to evaluate your feedback, investigate reported calculation bugs, address building code suggestions, and reply to your inquiry.
- Form Processing Provider: Online form submissions are transmitted via FormSubmit (an external form routing service) directly to our official support email address (
[email protected]). - Data Retention: We retain correspondence only as reasonably necessary to resolve your inquiry, maintain a record of verified mathematical formula corrections, or satisfy legitimate business and legal documentation requirements. We do not use contact submission data for marketing lists, advertising, or promotional profiling.
6. Third-Party Services in Use
We only engage external service providers whose functions are directly relevant to site operation, telemetry, or user inquiries:
- Cloudflare, Inc. (Cloudflare Pages): Content delivery network (CDN), reverse proxy, SSL/TLS termination, and edge security provider. Cloudflare processes network connection metadata (including visitor IP addresses) at edge nodes to deliver static assets, mitigate distributed denial-of-service (DDoS) attacks, and maintain web security.
- Google LLC (Google Analytics): Aggregated site telemetry, traffic measurement, and diagnostic performance monitoring.
- Google LLC (Google AdSense / Advertising Partners): Delivery and measurement of display advertisements when advertising is active.
- FormSubmit: Form routing endpoint for voluntary contact submissions delivered to our support inbox.
- Google Fonts: Web typography delivery (Inter and Geist Mono fonts loaded from Google CDN).
7. EEA, UK & Switzerland Visitors
Where applicable under the General Data Protection Regulation (GDPR) or UK GDPR, advertising and consent requirements for visitors residing in the European Economic Area (EEA), United Kingdom, or Switzerland will be handled in accordance with Google's applicable consent policies and regulatory requirements. When advertising is enabled for visitors in these jurisdictions, appropriate consent mechanisms for cookies and personalized advertising will be implemented in compliance with applicable standards.
8. Contact Us & Data Inquiries
If you have questions, feedback, or data requests regarding this Privacy Policy or any information you have submitted to us, please reach out directly:
Email: [email protected]
Contact Page: exteriorcalc.com/contact/