EPDM Roofing Calculator

Material quantities for EPDM single-ply roofing.

Roof Length (ft)

Roof Width (ft)

Membrane Thickness (mil)

Sheet Width (ft)

Attachment (0=Adhered, 1=Mech, 2=Ballast)

Waste Factor (%)

Tab to move between fields

Roof Area (sqft)

3,200

Membrane Needed (sqft)4,050

Number of Sheets5

Seam Tape Rolls4

Termination Bar (pcs)24

Bonding Adhesive (gal)55

Lap Sealant Tubes19

Est. Material Cost ($)$5,463

How to Use This Calculator

Enter roof dimensions (length x width in feet) and select membrane thickness (mil).
Set sheet width (ft) and select attachment method (adhered, mechanically fastened, or ballasted).
Review calculated roof area, membrane sqft, number of sheets, and seam tape rolls.
Add fastener count for mechanically attached or ballast weight for ballasted systems.
Include splice adhesive and lap sealant quantities in your material order.

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