About LIBERTY™ Self‑Adhering Base/Ply Sheet
LIBERTY™ SBS Self-Adhering Roofing Systems are applied without torches, open flames, or hot asphalt, and are suitable for many primed substrates. LIBERTY™ Self-Adhering Base/Ply Sheet is a self-adhering modified bitumen roofing membrane intended to be used as either a base sheet for LIBERTY™ Self-Adhering Cap Sheet or as a ply sheet in modified bitumen roofing systems, providing long-lasting protection on low-slope roofs.
- Convenient self-adhering installation eliminates open flames, hot asphalt, or dangerous chemicals on your roof
- Reinforced with a glass mat which is coated with polymer-modified asphalt
- Installed as a base sheet with LIBERTY™ Self-Adhering Cap Sheet or ply sheet for modified bitumen systems
- Up to a 20-year limited warranty against manufacturing defects depending on system1
Key Benefits
Serves as a Base Sheet for LIBERTY™
Self-Adhering Cap Sheet or Ply Sheet for
modified bitumen roofing systems.
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Versatile
Serves as a base/ply sheet in LIBERTY™ Systems and mod-bit systems -
Convenient Installation
No torches, open flames, hot asphalt, bulky equipment, or messy solvent-based adhesives -
Durable
Reinforced with a fiberglass mat coated in polymer-modified asphalt
1See Limited Warranty on LIBERTY™ Self-Adhering Materials for complete coverage and restrictions
LIBERTY™ step-by-step installation video
Step-by-step instructions show you how to install a LIBERTY™ low-slope roofing system.
Get automatic Lifetime Protection on your entire GAF roofing system
When you install any GAF Lifetime Shingle and at least 3 qualifying GAF accessories, you'll automatically get a Lifetime limited warranty on your shingles and all qualifying GAF accessories*.
*See GAF Shingle & Accessory Ltd. Warranty for complete coverage and restrictions. The word “Lifetime” refers to the length of coverage provided by the GAF Shingle & Accessory Ltd. Warranty, and means as long as the original individual owner(s) of a single-family detached residence [or the second owner(s) in certain circumstances] owns the property where the shingles and accessories are installed. For owners/structures not meeting the above criteria, Lifetime coverage is not applicable. Lifetime ltd. warranty on accessories requires the use of at least three qualifying GAF accessories and the use of Lifetime Shingles.
Product Documentation
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Liberty System Sell Sheet RESLB100
Data Sheets
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Liberty System Sell Sheet SPANISH RESLB100S
Data Sheets
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Liberty™ SBS Self-Adhering Base Ply Cap Sheet SDS - 1008C
Safety Data Sheets
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RESLB507-PDF-1223_Liberty Calculator
Installation Instructions and Guides
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RESWT176 - Golden Pledge Limited Warranty Addendum for Low-Slope Roofs
Warranties Guarantess and Addendums
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RESWT177 - System Plus Limited Warranty Addendum for Low-Slope Roofs
Warranties Guarantess and Addendums
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RESWT220 - Silver Pledge Limited Warranty Addendum for Low-Slope Roofs
Warranties Guarantess and Addendums
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LIBERTY™ SBS Self-Adhering Roofing System Installation — Step-by-step*
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Step 1
Inspect the roof, and repair or replace damaged areas. -
Step 2
Apply LIBERTY™ Asphalt Primer at a rate of a 1/2 gallon per 100 sq. ft. -
Optional (for 2-ply system):
Install LIBERTY™ Self-Adhering Base/Ply. -
Step 3
Install edge flashing at all eave and rake edges, and apply LIBERTY™ Flashing Cement on exposed flange. -
Step 4
Install LIBERTY™ Self-Adhering Cap Sheet. -
Step 5
Clean up by removing tools, unused materials, and other debris. Plan on inspecting roof annually if possible.
*See application instructions for complete details.