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Ice and water barrier (self-adhered)

Its weight

The table
28 lb a squareThe sources give 27.3 to 30 lb.
Loose volume
Not known: it counts in the tons aloneNo source found gives a loose volume for torn-off ice and water barrier; it comes off bonded to the deck or the shingles.
How it was chosen
A 225 sq ft roll of Grace Ice & Water Shield weighs 61.4 lb with its release liner (27.3 lb a square); Grace gives the installed membrane at most 0.3 lb a square foot; Roof Observations 0.29. 28 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. Grace Ice & Water Shield, Product Data Sheet

    GCP Applied Technologies (copy hosted by The Home Depot) · manufacturer spec sheet · read 2026-10-23

    Product Data: "Roll size 225 ft² (20.9 m²)" "Roll weight 61.4 lbs (27.9 kg)"; physical properties: "Material weight installed (max) 0.3 lb/ft² (1.3 kg/m²)"

    The document

  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 "Self-adhering ice and water shield": 0.29 lb/ft², 29 lb/square; source named: GCP Applied Technologies.

    The document An archived copy