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PVC membrane, 45 mil

Its weight

The table
31 lb a squareThe sources give 31 to 35 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
No maker's 45-mil PVC weight was found. Johns Manville's 50-mil PVC weighs 0.34 lb a square foot and ASCE 7's 0.05" PVC 0.35; scaled to 45 mil the 50-mil sheet comes to 31 lb a square, which 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. RS-9417 Product Weight Charts (10-25)

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

    Single Ply Membranes, JM PVC (KEE): "PVC 50mil 0.34" (nominal weight lb/sqft)

    The document An archived copy

  2. Tech Note GE-1: Product Weights (weights of building materials for dead loads, (c) 2021)

    Boise Cascade Wood Products; rows marked (1) cite ASCE 7-16 Table C3.1-1a, sheathing rows (3) cite APA EWS TT-019 (1998) · estimating guide · read 2026-10-23

    ROOF: "0.05" thick polyvinyl chloride polymer membrane (4) 0.35" (footnote (4): "Duro-Last General Specifications, Duro-Last Roofing, Inc. 2005") Footnote (1): "Minimum Design Loads for Buildings and Other Structures, ASCE 7-16, Table C3.1-1a." Values are pounds per square foot.

    The document An archived copy