TPO Roofing Calculator
Membrane area, adhesive, and accessories for TPO system.
Inputs
%
Results
Roof Area (sqft)
7,200
Membrane Needed (sqft)8,435
Number of Rolls7
Seam Length (LF)720
Fasteners + Plates4,416
Termination Bar (pcs)36
Edge Metal (pcs)36
Est. Material Cost ($)$6,655
Roof Area With Waste7,776
How to Use This Calculator
- Enter roof dimensions (length x width in feet), membrane thickness (mil), and roll width (ft).
- Enter the number of penetrations.
- Review roof area, membrane sqft, number of rolls, total seam length (LF), and fasteners.
- Include cover board if required by the specification -- TPO directly over insulation may reduce warranty.
- TPO seams are heat-welded -- seam quality is critical and requires an approved weld tester for QC.
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