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Built-up roofing, 4 ply (without gravel)

Its weight

The table
300 lb a squareThe sources give 258 to 350 lb.
Loose volume
Not known: it counts in the tons aloneNo source found gives a loose volume for torn-off built-up plies.
How it was chosen
Xactimate disposes of a torn-off square of 4-ply at 350 lb (5.71 squares a ton); Owens Corning and GAF's smooth 4-ply weighs 258 lb. 300 lb is their middle.

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. Xactimate price list item RFG BU4RMV

    Verisk Xactimate, as Roofometry keeps it · estimating guide · read 2026-10-23

    RFG BU4RMV, "Tear off, haul and dispose of 4 ply built-up roofing." Definition: "Includes: Dump fees, hauling, disposal, and labor to tear-off 4 ply built-up roofing." Dump fee component DMOFEE, direct_yield "5.710 SQ/TN".

    A copy is kept with Roofometry.

  2. Weight of Roofing Materials: Comprehensive Reference Table (Jack Gray, RRO; first published 12/09/2025, updated 12/24/2025)

    Roof Observations · trade publication · read 2026-10-23

    Row "BUR, 4-ply, smooth-surfaced": 2.58 lb/ft², 258 lb/square; sources named: Owens Corning; GAF.

    The document An archived copy