Coating compositions for polymeric roofing materials

A roofing system comprising:

• a polymeric roofing membrane;
• and
• a coating on a surface of the polymeric roofing membrane, wherein the coating is formed from a composition comprising:
• an aqueous carrier liquid;
• and
• a latex copolymer formed from reactants comprising a vinyl monomer having an alkyl group including between 2 and 20 carbon atoms, wherein the reactants comprise at least 20 wt. % of the vinyl monomer having an alkyl group including between 2 and 12 carbon atoms, based on the total weight of ethylenically unsaturated monomers used to make the latex copolymer, and wherein a homopolymer formed from the vinyl monomer exhibits a glass transition temperature of between about −10° C. and about 30° C.;
• wherein a coating formed from the coating composition exhibits a wet adhesion to a thermoplastic polyolefin roofing membrane of greater than about 1 pounds per linear inch when tested using fabric embedded peel adhesion testing per ASTM D903 at a coverage of about 80 ft2/gallon.