GAP 30 ASTM 4869

GAP 30 ASTM 4869 Type II felt is an underlayment product that is manufactured from superior quality organic felt that is saturated with asphalt. It is a Florida Building Code Approved product.

    Product Use

    GAP 30 ASTM 4869 underlayment is applied over the roofing deck before installation of asphalt shingles. This product is highly recommended as an underlayment for architectural shingles and is not recommended for 20 year 3 tab shingles.

    Technical Data

    ASTM D 4869 Type 1

    • Width of Roll = 36”
    • Roof coverage per Roll = 216 Square feet
    • Mass of saturated felt roll = 13.0 lbs/100 sq ft
    • Mass of saturant = 6.0 lbs/100 sq ft
    • Mass of desaturated felt = 5.0 lbs / 100 ft sq
    • Saturation by weight (min) = 110%
    • Saturation efficiency (min) by weight = 75%
    • Breaking Strength at 77F (min)
    • Machine direction = 30 lbf/in
    • Cross Direction = 15 lbf/in
    • Pass 4 hour liquid Transmission water test YES
    • Pliability at 77F when bend 90 degrees = ½” radius
    • Pallet Size 42” X 42”
    • No. of Rolls per Pallet = 30

    Florida Building Code #

    • FL # 2894.3
    • Miami Dade Approved: N/A

    Documents

    Download Printable Documents

    Manufacturing Locations

    Pryor, OK | McGregor, TX | Shafter, CA