(November 30, 2017, 7:58 AM EST) -- PEORIA, Ill. — IKO Manufacturing Inc. says in a Nov. 16 brief filed in Illinois federal court that a proposed class for purchasers of its organic asphalt shingles who claim that the product is defective should not be certified because a number of individual issues predominate over common claims (In re: IKO Roofing Shingle Products Liability Litigation, MDL 2104, Case No. 09-md-2104, C.D. Ill.)....