Mealey's (March 21, 2018, 1:28 PM EDT) -- PHILADELPHIA — A Pennsylvania federal court did not abuse its discretion when it denied certification of two proposed classes in a lawsuit alleging defective roof shingles as the first class, consisting of consumers from all over the nation, can’t satisfy Federal Rule of Civil Procedure 23(a)’s commonality requirement and the second class fails to satisfy Rule 23(b)(3)’s predominance requirement, a Third Circuit U.S. Court of Appeals panel ruled March 19 (Jaime Gonzalez, et al. v. Owens Corning, et al., No. 16-2653, 3rd Cir., 2018 U.S. App. LEXIS 6757)....