Built-Up Roofing Calculator
Ply count, bitumen, and surfacing for BUR system.
Inputs
%
Results
Actual Roof Area (sqft)
2,000
Roofing Squares22
Base Sheet Rolls12
Ply Sheet Rolls34
Bitumen Required (lbs)2,971
Gravel/Aggregate (tons)4.4
Est. Material Cost ($)$2,916
How to Use This Calculator
- Enter the roof footprint (sqft) and pitch (rise per 12 in).
- Set the number of plies and waste factor (%).
- Review calculated roof area, roof squares, base sheet rolls, ply rolls, and cap sheet rolls.
- Add gravel surfacing or cap sheet quantities for the selected BUR specification.
- Multiply roll quantities by unit costs to generate a material estimate.
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