Black Jack All-Weather Roof Cement by Gardner-Gibson is a high-performance asphalt-based patching compound designed for long-lasting repairs on cracks, seams, and holes in roofing materials. This waterproof roof cement is ideal for both emergency repairs and new construction, providing a strong seal that helps prevent leaks and water damage. Its gel form makes application easy and precise, ensuring a tight bond on a variety of surfaces, including asphalt shingles, metal roofs, and flat roofs. The compact 5-gal. package is perfect for larger projects, while the black color blends seamlessly with most roofing materials for a professional finish. Use this asphalt roof sealant to set flashings, drip edges, and roofing material edges, or as a reliable roofing tar for patching and sealing. Suitable for use as a flat roof sealant or metal roof sealant, this product delivers durable, weather-resistant protection in all climates. With Gardner-Gibson's trusted quality, you can count on this roof cement to provide superior waterproofing and long-term performance for your roofing needs.