Sprayable waste rubber-based coating

A roof coating composition comprising:

• crumbs of size 10-20 mesh and buffings from a reclaimed tire processing product,
• a binding agent consisting of a mixture of:
• an epoxy-based binding agent and
• a polyurethane-based binding agent, and
• an amount of fibers selected from polyester, nylon, Kevlar and their mixture thereof effective to modulate tensile properties of the surface coating composition,
• wherein the roof coating composition is configured to form a composite when coated and cured on a roof, where the composite comprises:
• i) a water absorption of less than or equal to 3%;
• ii) an adhesion-in-peel value of greater than or equal to 175N/m;
• iii) a tensile-tear strength value of greater than or equal to 400N;
• iv) a normalized strain energy value of greater than or equal to 5.5 kN/m at 23° C. (+2° C.);
• and
• v) an average elongation recovery value of greater than or equal to 90%.