# Pricing notes

The Canada and U.S. presets are editable starting points only. Contractors must replace them with their own material, labour, overhead, disposal, permit and warranty pricing before publishing.

The Ontario reference supplied for this adaptation describes architectural asphalt, metal, flat/low-slope, cedar and slate systems, with price varying by roof size, pitch, accessibility, tear-off and related scope. Related indexed pages cite basic asphalt around $5–$7 per square foot and premium metal or cedar around $12–$15 per square foot, while other examples show higher all-in project ranges. These figures are context, not a normalized rate card.

The calculator therefore separates the installed system rate from compounding project factors and fixed/component allowances. The default result spread remains plus or minus 13%, matching the source fence estimator.

Reference reviewed July 21, 2026:
https://www.custom-contracting.ca/resources/roofing-cost-ontario
