Henry #204 Plastic Roof Cement 1 Gal.

Henry #204 Plastic Roof Cement is a premium, trowel-grade sealant engineered for heavy-duty roof repairs. Formulated with high-quality refined asphalt and inert mineral fibers, this versatile cement delivers a smooth application on dry surfaces and cures into a tough, flexible film that resists brittleness in cold weather and sagging in heat. Ideal for sealing and patching leaks in asphalt, metal, masonry or composition roofs, it provides long-lasting protection against wind-driven rain and ice damage.

Whether you’re a professional contractor or a DIY homeowner, this roof cement makes quick work of cracks, splits and protrusion seals. Reinforce with glass fabric over difficult seams or metal edges to ensure a watertight bond around chimneys, vents, skylights, flashings and gutters.

Key Features

• Trowel-grade consistency for easy, precise application
• High-quality refined asphalt blended with inert mineral fibers
• Forms a durable, flexible, weather-resistant film
• Coverage: approx. 12.5 ft² at 1/8″ thickness
• Ideal for asphalt, metal, masonry and composition roofs
• Black color provides UV resistance and hides repairs
• Meets ASTM D2822-75 Type I performance standards

⚠️ WARNING: This product can expose you to Benz[a]anthracene known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.

⚠️ WARNING: This product can expose you to polycyclic aromatic compounds (possibly present in asphalt in trace amounts) which are known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.