GAF Liberty Base Sheet, Self‑Adhering, 3.28-ft W x 66-ft L (200-sq ft) Black Roll Roofing

Regular price $147.31

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GAF Liberty Self-Adhering Base/Ply Roll Roofing, 200-sq ft

The GAF Liberty Base Sheet is a self-adhering modified bitumen membrane for low-slope roofs. Designed to install without torches, hot asphalt, or solvents, it serves as the base or ply layer beneath Liberty cap sheets to deliver durable, long-lasting protection.


Key Features:

  • Self-Adhering Installation: Peel-and-stick application eliminates torches, hot asphalt, and solvents for safer, faster installs
  • Durable Construction: Glass mat reinforcement coated with polymer-modified asphalt for strength and flexibility
  • Complete System Compatibility: Use as a base sheet with LIBERTY SBS Self‑Adhering Cap Sheet or as a ply sheet in modified bitumen systems
  • Time-Saving Setup: Minimal prep and cleanup helps speed up projects
  • Low-Slope Protection: Ideal for many primed substrates on residential or light commercial low-slope roofs

Specifications Table:

Specification Details
Series Name Liberty Base Sheet
Type Base sheet
Color/Finish Family Black
Manufacturer Color/Finish Black
Coverage Area 200 sq ft
Length 66 ft
Width 3.28 ft
Package Quantity 1
Underlayment Required No
Water Resistant Yes
Waterproof No
Warranty 10-year limited
Roll Weight 88 lbs
UNSPSC 30151500
Material Glass mat reinforced, polymer-modified asphalt
Installation Self-adhering (peel-and-stick) for primed substrates
System Use Use as base or ply sheet with Liberty SBS Self‑Adhering Cap Sheet

Frequently Asked Questions (FAQ):

Q: Is additional adhesive or torching required?
A: No. This is a self‑adhering membrane that installs without torches, hot asphalt, or solvent-based adhesives.


Q: What coverage does one roll provide?
A: One roll covers approximately 200 sq ft (3.28-ft wide by 66-ft long).


Q: Is it waterproof by itself?
A: It is water resistant; use with a compatible LIBERTY cap sheet to complete the waterproof roofing system.


Q: What surfaces can it be applied to?
A: It is suitable for many primed substrates on low-slope roofs; follow GAF installation guidelines.


Q: What is the warranty?
A: 10-year limited warranty when installed per manufacturer instructions.


Sleek, Seamless Confidence for Low‑Slope Roofs

Liberty’s self-adhering base sheet brings a refined, uniform surface to low-slope structures, transforming the roof into a clean, purposeful plane. I love the quiet sophistication of the black finish and the tidy seams that feel intentional and modern. Pair it with the Liberty cap sheet for a polished, architectural look that complements contemporary exteriors. It’s a smart, essential layer that marries style with enduring performance.


Choose GAF Liberty Base Sheet today for a safer, faster peel-and-stick install and long-lasting low-slope roof protection.

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