No. 15 asphalt felt
Its weight
- The table
- 12 lb a squareThe sources give 7 to 13.9 lb.
- Loose volume
- Not known: it counts in the tons aloneNo source found gives a loose volume for torn-off felt; it goes out with the shingles.
- How it was chosen
- ASTM D226 Type I felt weighs 11.5 lb a square (TriBuilt's data sheet); IIBEC's history gives the old "15-lb" felt 13.9 lb; Roof Observations gives 7 to 13 lb for what is sold as #15. 12 lb is the figure. Xactimate counts the felt inside its shingle tear-off.
Your figure
None: estimates use the table's.
Give your own figure
3 sources
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No. 15 Asphalt Felt - ASTM D226 - Product Data
TriBuilt Materials Group · manufacturer spec sheet · read 2026-10-23
"Roof Coverage per Roll 432 sq ft" "Mass of Saturated Felt Roll 11.5 lbs/ 100 ft sq"
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When Is No. 30 Asphalt Felt Not No. 30 Asphalt Felt? (Jeffrey Levine, November 10, 2019)
IIBEC (International Institute of Building Enclosure Consultants) · industry association · read 2026-10-23
"The "15-lb. weight" felt weighed approximately 60 lbs. per 432-sq.-ft. roll, or 13.9 lbs. per square" "The 30-lb. weight felt weighed approximately 60 lbs. per 216-sq.-ft. roll, or 27.8 lbs. per square"
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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 "Asphalt-impregnated felt, #15": 0.07–0.13 lb/ft², 7–13 lb/square; source named: U.S. Dept. of Energy.