Roof Replacement Cost Calculator: Check Your Quote Line by Line
A roofing quote arrives as one number. Inside it are eight or nine separate things, and you can check most of them yourself with a tape measure and public data. This page shows the arithmetic, gives you a calculator that produces both a total and a materials list for your roof, checks the quote you were given against a published benchmark for your part of the country, and tells you plainly which parts we cannot verify for you. What you can check, and what you can't Most cost guides hand you a range — "$8,000 to $15,000" — and stop. That range cannot tell you whether the quote in your hand is fair, because it doesn't say which line is out of position. Here is the honest breakdown of what is checkable: Line item Can you verify it? How Roof area Yes Geometry. Footprint × pitch factor. Material quantities Yes Area and perimeter drive every quantity. Code minimums Yes Published building code. Tear-off weight Yes Shingle weight per square × layers. Labor hou...