Fix common types of roof leaks instantly with Gardner Leak Stopper Rubber-Flexx Sealant. It uses specially formulated rubberized repair to fix a variety of surfaces like shingles, metal roofs, chimneys, skylights, gutters and pipes.Features It uses Rubber Flexx for sealing surfaces It repairs surfaces like shingles, metal roofs etc. Specifications Size: 18 oz Weight: 16.8 lb Coverage: 12 sq. ft. Type: Flexx Spray Application: Tools and Home Improvement Width: 2.69" Length: 2.69"