Trowel grade for use on DRY surfaces. Modified and rubberized. Use on hot or cold conditions. Spreads easily in cold weather. Repairs holes, cracks and splits on asphalt coated, composition, and metal roofs. Seal around chimneys, vents, skylights, and flashings. Seals tabs of asphalt shingles. ASTM D2822 Type 1 Class 1.