Henry Smooth Black Asphalt Cold-Ap Roof And Lap Adhesive, 1 gal, is a fiber-reinforced, cold-applied asphalt adhesive engineered for durable lap seams and roof repairs on asphalt-based systems. Its solid black finish blends seamlessly with roofing membranes, delivering a clean, professional look while providing a robust waterproof seal.
Why this adhesive stands out
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Cold-applied performance: Apply without heat, reducing on-site risks and speeding up repairs on roofs, decks, and flashing details.
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Fiber reinforced: Enhanced tear resistance and structural integrity to help withstand wind uplift and temperature movement along laps and patches.
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Solid black, smooth finish: Aesthetically matches asphalt membranes and creates a consistent, uninterrupted surface profile.
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1-gallon can: Convenient size for small-to-medium roofing jobs, repairs, and maintenance projects.
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Durability: Provides reliable performance with a projected service life up to 1 year under typical exposure conditions.
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Not water-based: Formulated for asphalt systems where a solvent- or oil-based adhesive is preferred for adhesion and long-term moisture resistance.
Where to use it
Ideal for sealing and bonding lap joints on built-up roofs, roll roofing, and other asphalt-based roofing assemblies. Use for patching minor breaches, securing laps, and detailing flashing where a strong, flexible bond is required. The adhesive’s composition supports reliable adhesion across various substrates encountered in roof installations and repairs.
How it helps you get the job done
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Easy workflow: No heat source required—shop-to-roof application is straightforward, minimizing project setup time.
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Longer-lasting seals: The combination of asphalt base and fiber reinforcement delivers a durable bond that resists movement and environmental exposure.
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Consistent performance: The smooth, solid black finish promotes uniform coverage and a professional look, reducing touch-ups and rework.
Usage guidance at a glance
Prepare a clean, dry surface. Apply the adhesive evenly to laps and patches per label directions. Allow appropriate cure time before subjecting the area to weather exposure. Store and use as directed to maintain shelf life and performance. This product is designed for professionals and DIYers tackling asphalt roof repairs who need a reliable, ready-to-use cold-applied adhesive.
Product specifics
- Brand: Henry
- Coating Material: Asphalt
- Application: Cold
- Color: Black
- Container Size: 1 gal
- Fiber Reinforced: Yes
- Product Type: Cold-Ap Roof And Lap Adhesive
- Transparency: Solid
- Durability: 1 Year
- Sheen: Smooth
