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EPDM, 45 mil

Its weight

The table
31 lb a squareThe sources give 30 to 31 lb.
Loose volume
Not known: it counts in the tons aloneNo source found gives a loose debris volume for torn-off membrane; it rolls or folds, and a hauler's volume for it was not found.
How it was chosen
Firestone's 45-mil RubberGard weighs 0.31 lb a square foot, Johns Manville's 45NR 0.30. 31 lb is the figure.

Your figure

None: estimates use the table's.

Give your own figure
For each square of roof, or each sheet of decking.
Loose, as it lands in the dumpster, for each square or each sheet.
Your scale tickets, your hauler's figures: what a reader would check it against.

2 sources

  1. Low Slope Fire Retardant (LSFR) RubberGard EPDM Membrane, TIS 103 (9-28-2017)

    Firestone Building Products (copy in the RCABC Roofing Practices Manual) · manufacturer spec sheet · read 2026-10-23

    Product Packaging: "0.045" (1.14 mm) ... 0.31 lb/ft² (1.5 kg/m²)" "0.060" (1.52 mm) ... 0.43 lb/ft² (2.1 kg/m²)"

    The document An archived copy

  2. RS-9417 Product Weight Charts (10-25)

    Johns Manville · manufacturer spec sheet · read 2026-10-23

    Single Ply Membranes, JM EPDM: "EPDM 45NR 0.30" (nominal weight lb/sqft)

    The document An archived copy