As an Amazon Associate I earn from qualifying purchases.
Need help with a Smart Roofing Calculator tool or have a question about roofing math, materials, or installation? Email us at support@dixonappstudio.com and we typically reply within one business day. We can help with calculator usage, recommend the right tool for your project, walk through worked examples, or point you to the matching installation guide. We also welcome feedback, feature requests, and partnership inquiries from roofing professionals.
If something on the site is wrong, unclear or broken, the fastest fix is to say which page and what you expected. Roofing numbers are checkable, so a specific report — the page, the inputs you used and the answer you expected — gets corrected quickly.
Whether you entered the footprint or the sloped area, and whether the pitch is in rise-over-12 rather than degrees. Those two account for almost every result that looks too small or too large.
Check bundles per square on the wrapper. Most architectural and three-tab shingles are three per square, but heavyweight designer lines are four or five, which changes the count by a third or more.
No. The site does not visit properties, does not quote, and does not pass your details to contractors. Get three written quotes from licensed local contractors against the same scope.
No — code varies by jurisdiction and the authority having jurisdiction decides. The guides describe the common requirements and say where the answer is local.