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#15 ASTM D4869 Felt

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#30 ASTM D226 Organic Felt

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#30 ASTM D4869 Organic Felt

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ASTM D226 Shake Felt Underlayment

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#30 ASTM D226 Felt - Metric

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Self-Adhering High Temp Underlayment

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S/A HT TU Underlayment

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Smooth Seal HT Underlayment

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#30 Felt

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#15 ASTM D4869 Felt

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#30 Felt

Tilcor Roofing Systems

Sol-R-Skin "C" Underlayment - 4 SQ. Roll

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Roof-Proof Hybrid Underlayment

Excellent Coatings

Excel-Crete Acrylic Latex Modified Concrete & Underlayment - 50 Lb. Bag

GMC

15# Perforated Felt ASTM D-226 - 4 SQ. Roll

Drexel Metals

59" x 104' RoofTopGuard SA High-Temperature Membrane - 500 SQ. Roll

Roofnado

StormTread™ Synthetic Roof Underlayment - 5 SQ. Roll

Resisto

10 mil x 42" x 286' Resistor SF Synthetic Underlayment - 10 SQ. Roll

Resisto

36" x 33' Resistoflex Roofing Underlayment Membrane - 1 SQ. Roll

Westlake Royal Roofing Components

TileSeal™ HT Underlayment - 2 SQ. Roll

International Roofing Group

2-Ply 60-Minute DD Felt UUB-790A

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#15 Non-Spec Asphalt Saturated Roofing Felt

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#30 Non-Spec Asphalt Saturated Roofing Felt

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#30 ASTM D4869 Felt