Liberty Low-Slope Membrane Roofing

LIBERTY SBS Self-Adhering Roofing System

Protect Your Low-Slope Roof And Use No Special Tools When Installing A Self-Adhering Roofing System

A Self-Adhering Roofing System will provide long-lasting protection for the low-slope areas of your property without the danger or hassles associated with the installation of other conventional roofing products.

LIBERTY™ Roofing Systems are applied without torches, open flames, hot asphalt, or messy solvent-based adhesives. Unlike traditional roofing systems, they can be installed easily and quickly by a small roofing crew, without the hassles of bulky equipment or unpleasant odors.

Good Housekeeping

The LIBERTY™ SBS Self-Adhering Roofing System has earned the prestigious Good Housekeeping Seal, which means that Good Housekeeping stands behind the products in this system. (Refer to Good Housekeeping Magazine for its consumer protection policy. Applicable in U.S. only.) (See Details)

Owner’s Best Choice

  • Safer For Your Building…
    Self-adhering membrane systems eliminate the need for open flames on your roof
  • No Fumes…
    Unlike conventionally applied systems, eliminates the fumes and odors caused by hot asphalt or solvent-based adhesives
  • Proven Technology…
    Based on the same technology used in GAF’s commercial modified bitumen roofing systems – proven in the field for decades!
  • Great Warranty…
    Free ltd. system warranty against material defects for up to 15 years*
  • Extended Guarantees Available…
    Optional full-system guarantees against manufacturing defects and workmanship errors available for up to 20 years**
  • Peace Of Mind…
    Backed by GAF, North America’s largest roofing manufacturer
  • Seven Popular Colors…
    To complement your Timberline® Shingles or other residential
    shingle roof

*See LIBERTY™ Limited Warranty on SBS Materials for complete coverage and restrictions.
** See System Pledge™ Roof Guarantee and RUBEROID®/GAFGLAS® Diamond Pledge™ NDL Roof Guarantee for complete coverage and restrictions.

 Color Palette
Liberty Color Options

Note: These blended colors are designed to complement your shingles, not to be an exact match. Because of the small size of these samples, it is difficult to reproduce the actual color effect. Please be sure to see a full-size roll before making a final color selection.


Applicable Standards

  • FM Approved
  • UL Classified
  • Miami-Dade County Product Control Approved
  • FBC Approved
  • Texas Department of Insurance*

* Texas Department of Insurance does not apply to LIBERTY™ MA Base Sheet

Product Specifications (Nominal)

LIBERTY™ MA Base Sheet LIBERTY™ Self-Adhering Base/Ply Sheet LIBERTY™ Self-Adhering Cap Sheet
Roll length 66 ft
(20.1 m)
66 ft
(20.1 m)
34 ft
(10.4 m)
Roll width 39.375 in
(1.0 m)
39.375 in
(1.0 m)
39.375 in
(1.0 m)
Roll thickness 0.068 in
(1.73 mm)
0.068 in
(1.73 mm)
0.157 in
(4.00 mm)
Roll weight 82 lbs
(37.2 kg)
82 lbs
(37.2 kg)
96.4 lbs
(43.7 kg)
Roll size 2 squares
216 sq ft
(20.1 m2)
2 squares
216 sq ft
(20.1 m2)
1 squares
112 sq ft
(10.4 m2)

Other Residential Roofing Products & Accessories (Not Part Of The Lifetime Roofing System)

Three-Tab Strip Shingles

Affordable, basic protection for projects on a limited budget.

Low-Slope Membrane Roofing

Protect porches, carports, and other low-slope roofing areas with a quality membrane roofing system.

MasterFlow® Attic Ventilation

MasterFlow® Attic Ventilation offers a wide array of ventilation solutions designed for virtually any climate.

Roof Accessory Paint

GAF ShingleMatch™ Roof Accessory Paint will help to hide unsightly protrusions on the roof including vent pipes, exhaust vents, etc.

Masonry Sealer

Masonex Clear Masonry Sealer repels moisture on above-grade, vertical masonry surfaces

Nail Base Roof & Wall Insulation

ThermaCal® Roof & Wall Insulation Panels insulate and ventilate (select models), while serving as a nailable base for roof coverings and siding


Get a Free Estimate

At Core Exteriors, we offer a variety of home exterior services in the Twin Cities area, including roofing, siding, windows and gutters. Fill out this quick form and receive a free consultation in as quick as two hours.
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Delivering on our CORE values.

By focusing on integrity, efficiency, and the highest quality products and services, we make sure your job gets done right the first time.