How do I use the Commercial Flat Roof TPO vs EPDM Membrane Cost Calculator?

Enter your specific project or financial parameters into the input fields above. The engine recalculates outputs dynamically in real time and updates visual charts and summary metrics.

Can I export and share these results?

Yes, you can generate shareable state links, export clean CSV spreadsheets, or print high-resolution executive reports with a single click.

Is this calculator free to use?

Yes, all calculation engines on ToolsVault are 100% free with no account registration or paywall required.

Commercial Roofing Systems

Commercial Flat Roof TPO vs EPDM Cost Calculator

Calculate roofing squares (100 sq ft), polyisocyanurate (Polyiso) rigid insulation thickness, heat-welded seams, edge metal flashing, and 20-year NDL warranty costs.

Roof Area & Membrane System

Total Roof Area (Sq Ft)

Single-Ply Membrane Type & Thickness

Polyiso Rigid Insulation R-Value Target

Existing Roof Tear-Off & Disposal

Commercial Bid Estimate

Commercial Roofing Squares

100 sq ft per square

150 Squares

Turnkey Cost per Square

Membrane + Polyiso + Tear-off

$1,560 / Square

Total Turnkey Commercial Roof Bid

Includes labor, crane & 20-Yr NDL warranty

$234,000

White TPO membranes reflect 78% of solar radiation (Cool Roof Rating Council), cutting peak rooftop HVAC surface temperatures by up to 50°F.

Official Field Inspection Standard Free PDF

Commercial Roofing & Waterproofing Field Audit Sheet (Form TV-CR4)

Printable 8.5x11 single-ply inspection checklist covering seam probe protocols, ponding, penetrations, and owner warranty sign-offs.

Download Free PDF