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GAF LIBERTY Premium Flashing Cement, Trowel-Grade Black, 1 Gal Pail
Regular price $46.75Orders start at $399 — combine any items to reach the minimum. Learn more
GAF LIBERTY Premium Flashing Cement, Trowel-Grade Black, 1 Gal Pail
GAF LIBERTY Premium Flashing Cement is a trowel-grade black bonding agent for sealing shingles, metal, built-up asphalt, SBS modified bitumen laps, metal-edge flashing, gutter seams and more. Sold as a 1 gal pail, it applies with a 1/4 in. notched trowel or squeegee and stays flexible at low temperatures.
Key Features:
- Versatile Bonding: Bonds shingles, metal, built-up asphalt, SBS modified bitumen, metal-edge flashing, gutter seams and AC ducts.
- Trowel-Grade: Trowel-grade consistency suits flashing details, steep-slope membrane attachment and parapet walls.
- Strong and Flexible: Excellent bonding strength with high flexibility to handle temperature-related expansion and contraction.
- Low-Temp Flexibility: Maintains excellent low-temperature flexibility after application.
- Easy Application: Applied with a 1/4 in. notched trowel or squeegee.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Sell unit | 1 gal pail |
| Product line | LIBERTY Premium Flashing Cement |
| Available colors | Black |
| Available sizes | 1 gal |
| Material | Trowel-grade asphalt flashing cement (bonding agent) |
| Finish / texture | Black, trowel-grade consistency |
| Intended use | Flashing details, membrane-to-steep-slope and parapet attachment, roofing and waterproofing repairs, gutter seams and duct sealing |
Coverage & How Much You Need:
Coverage is not stated in the sources; the spread rate depends on application thickness and detail, so follow the manufacturer's technical data sheet when estimating pails per job.
Fit and Compatibility:
Compatible with shingles, metal, built-up asphalt systems and SBS modified bitumen membranes, including end laps, perimeter edges, metal-edge flashing, gutter seams and AC ducts. It pairs with the GAF LIBERTY self-adhered membrane system; membranes and primers are sold separately.
Frequently Asked Questions (FAQ):
Q: What is included?
A: One 1 gal pail of black LIBERTY Premium Flashing Cement.
Q: How is it applied?
A: With a 1/4 in. notched trowel or squeegee.
Q: What can it seal?
A: Shingles, metal, built-up asphalt, SBS modified bitumen end laps and perimeter edges, metal-edge flashing, gutter seams and AC ducts.
Q: Is it flexible in cold weather?
A: Yes, it maintains excellent low-temperature flexibility.
Q: Can it attach membrane to steep slopes?
A: Yes, its trowel-grade consistency makes it ideal for attaching membrane on steep slopes and parapet walls.
Q: Does it handle roof movement?
A: Yes, it offers high flexibility to accommodate temperature-related expansion and contraction.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Use this flashing cement for detail work, terminations and repairs where a trowel-grade, flexible mastic is called for. Apply at the recommended thickness with a 1/4 in. notched trowel, tool it into laps and flashings, and avoid over-thinning, which reduces low-temperature flexibility. Keep the pail closed between uses to prevent skinning.
Solvent-containing roofing cements are flammable; keep away from ignition sources and provide ventilation while applying.
Order GAF LIBERTY Premium Flashing Cement in the 1 gal pail for dependable flashing and repair work.
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