What does this roof estimate assume?
The tool treats the roof as a simple symmetric gable. It applies the pitch to the plan area, then adds the waste allowance you choose before converting the area into roofing squares and bundles.
What should be verified before ordering?
Complex roof features, product-specific coverage, starter courses, ridge caps, flashing, decking condition and local requirements can materially change the final order. Confirm the takeoff with the supplier or qualified project team.