Jaime Gonzalez v. Owens Corning , 885 F.3d 186 ( 2018 )


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  •                                            PRECEDENTIAL
    UNITED STATES COURT OF APPEALS
    FOR THE THIRD CIRCUIT
    ___________
    No. 16-2653
    JAIME GONZALEZ; PATRICIA WRIGHT; KEVIN WEST;
    GERALD BOEHM; EDWARD MAAG; DIANE MAAG,
    on behalf of themselves and all others similarly situated,
    Appellants
    v.
    OWENS CORNING; OWENS CORNING SALES LLC
    __________
    On Appeal from the United States District Court
    for the Western District of Pennsylvania
    (D.C. No. 2-13-cv-01378)
    District Judge: Honorable Joy Flowers Conti
    ___________
    Argued September 6, 2017
    Before: CHAGARES, JORDAN, and HARDIMAN,
    Circuit Judges.
    (Opinion Filed: March 19, 2018)
    Robert H. Klonoff [Argued]
    Jordan D. Schnitzer Professor of Law
    Lewis & Clark Law School
    Earthrise Law Center
    10015 Southwest Terwilliger Boulevard
    Portland, OR 97219
    Charles E. Schaffer
    Levin Sedran & Berman
    510 Walnut Street, Suite 500
    Philadelphia, PA 19106
    Shanon J. Carson
    Lawrence Deutsch
    Berger & Montague
    1622 Locust Street
    Philadelphia, PA 19103
    Charles J. LaDuca
    Cuneo Gilbert & LaDuca LLP
    8120 Woodmont Avenue, Suite 810
    Bethesda, MD 20814
    Michael A. McShane
    Audet & Partners
    711 Van Ness Avenue, Suite 500
    San Francisco, CA 94102
    Robert K. Shelquist
    Lockridge Grindal Nauen PLLP
    100 Washington Avenue South, Suite 2200
    Minneapolis, MN 55401
    Attorneys for Appellants
    2
    Carter G. Phillips [Argued]
    Sidley Austin
    1501 K Street, N.W.
    Washington, D.C. 20005
    Kara L. McCall
    T. Robert Scarborough
    Tacy F. Flint
    Elizabeth M. Chiarello
    Sidley Austin LLP
    One South Dearborn Street
    Chicago, IL 60603
    Arthur H. Stroyd, Jr.
    Del Sole Cavanaugh Stroyd
    Three PPG Place
    Suite 600
    Pittsburgh, PA 15222
    Attorneys for Appellees
    Allan P. Ides
    Simona Grossi
    Loyola Law School
    919 Albany Street
    Los Angeles, CA 90015
    Michael J. Quirk
    Williams Cuker & Berezofsky
    1515 Market Street, Suite 1300
    Philadelphia, PA 19102
    Attorneys for Appellants’ Amici Curiae
    3
    OPINION OF THE COURT
    ____________
    HARDIMAN, Circuit Judge.
    This appeal involves a putative class action brought by
    consumers in four states who alleged that Appellees Owens
    Corning and Owens Corning Sales, LLC (collectively, Owens
    Corning) sold defective roof shingles and misrepresented the
    shingles’ expected useful life. Appellants challenge an order
    of the United States District Court for the Western District of
    Pennsylvania denying class certification. We will affirm.
    I
    In 2009, Appellants Patricia Wright and Kevin West
    filed suit in the District Court under Rule 23 of the Federal
    Rules of Civil Procedure on behalf of a proposed nationwide
    class of individuals who “owned, own, or acquired” structures
    on which certain Owens Corning-manufactured roofing
    shingles “are or have been installed since 1986.” Gonzalez v.
    Owens Corning, 
    317 F.R.D. 443
    , 455 (W.D. Pa. 2016).
    Wright and West claimed that Oakridge shingles—an Owens
    Corning brand of fiberglass asphalt roofing shingles—are
    “plagued by design flaws that result in cracking, curling and
    degranulation” and “will eventually fail, causing property
    damage, and costing consumers substantial removal and
    replacement costs.” 
    Id. at 455.
    The District Court entered
    summary judgment in favor of Owens Corning, finding that
    Wright and West’s claims had been discharged in bankruptcy
    by the 2006 confirmation of Owens Corning’s reorganization
    plan. We partially reversed, concluding that the claims were
    not discharged. See Wright v. Owens Corning, 
    679 F.3d 101
    ,
    108–09 (3d Cir. 2012). After the case was remanded to the
    4
    District Court, Appellants Jaime Gonzalez, Gerald Boehm,
    and Edward and Diane Maag (together with Wright and West,
    Plaintiffs) filed three similar suits in district courts in other
    states, which were then transferred to the Western District of
    Pennsylvania and consolidated with Wright and West’s case.
    Plaintiffs are homeowners from Pennsylvania, Illinois,
    Texas, and California, on whose roofs Oakridge shingles
    were installed prior to 2006. They allege that their shingles
    have not performed as promised because they were
    manufactured “in accordance with defective design
    specifications.” 
    Gonzalez, 317 F.R.D. at 450
    . Of the named
    plaintiffs, three reported property damage and two had their
    roofs reshingled. The shingles were all subject to warranties
    of 25 years or more, which Plaintiffs argue amounted to
    affirmative representations about the shingles’ expected
    useful life. Plaintiffs proposed two classes in the District
    Court: (1) a class of property owners from their four home
    states (the Four-State Class), asserting various combinations
    of state-law causes of action against Owens Corning; and (2)
    a nationwide class of property owners (the Nationwide Class)
    seeking a ruling regarding the legal standard governing
    whether Owens Corning can use a bankruptcy discharge
    defense to shield itself from liability.
    A
    Plaintiffs proffer the Four-State Class as either a
    money damages class under Rule 23(b)(3) or an issue class
    under Rule 23(c)(4). Plaintiffs define the class as follows: “all
    individuals and entities that own a building or structure
    physically located in the states of California, Illinois,
    Pennsylvania, or Texas on which Owens Corning’s Oakridge-
    brand shingles were installed from 1992 through 2012, and
    5
    where those shingles manifested any cracking, degranulation,
    fragmentation, or deterioration during the warranty coverage
    
    period.” 317 F.R.D. at 453
    .
    During the proposed 20-year class period, Owens
    Corning manufactured at least 23 kinds of Oakridge shingles
    at 13 different plants around the country using more than 500
    design specifications. Plaintiffs did not dispute that all of
    these specifications met the applicable industry standard
    (ASTM D3462), which prescribes minimum measurements
    for newly manufactured shingles, such as “tear strength, net
    mass, mat mass, asphalt mass, and mineral matter mass.” 
    Id. at 465.
    Plaintiffs contended that in lieu of industry standards,
    defectiveness should be judged by the expected useful life of
    the shingles as represented by the applicable warranty period.
    According to Plaintiffs, compliance with ASTM D3462 did
    not consistently yield shingles that would last until the
    applicable warranty expired. In Plaintiffs’ view, Owens
    Corning’s design specifications sometimes yielded shingles
    vulnerable to “premature deterioration so that they . . . will
    actually only last 15 to 20 years.” App. 247–48.
    Plaintiffs claimed that Oakridge shingles had a
    propensity to fail before their warranties expired because of
    one or more of the following design flaws: insufficient
    asphalt quantity or quality, and insufficient mat mass and tear
    strength. Based on testing he conducted on 298 shingles,
    Plaintiffs’ expert Dean Rutila opined that “about half” of the
    Oakridge shingles produced during the proposed 20-year
    class period fell on the “low end” of Owens Corning’s
    specifications, which meant they were manufactured at or
    near the ASTM minimums. 
    Id. at 514,
    523, 528. Owens
    Corning challenged the admissibility of Rutila’s opinions
    under Daubert v. Merrell Dow Pharmaceuticals, Inc., 509
    
    6 U.S. 579
    (1993). The District Court ruled that all testimony
    based on Rutila’s testing was inadmissible, but that he could
    testify to the general effect of various measurements on
    shingle performance based on his review of Owens Corning’s
    internal documents, including design specifications and
    internal communications. For example, Rutila could testify
    that Oakridge design specifications produced shingles with a
    significant range of measurements, with only the “high-end”
    shingles capable of lasting for more than 20 years. 
    Gonzalez, 317 F.R.D. at 499
    . Rutila acknowledged, however, that the
    “appropriateness of design specification measurements can
    only be judged in relationship to each other,” 
    id. at 485,
    and
    that “a shingle would have to be individually inspected to
    determine whether it is a nondefective or defective shingle,”
    
    id. at 514.
    As a result, Plaintiffs could not point to “any
    particular measurement or set of measurements for the
    individual elements of a shingle that constitute a design
    defect.” 
    Id. B Plaintiffs
    propose that the Nationwide Class proceed
    under Rule 23(b)(1)(B) or Rule 23(b)(2), and that it include
    “all individuals and entities that own a building or structure
    physically located in the United States on which Owens
    Corning’s Oakridge-brand shingles are currently installed,
    where those shingles were purchased on or before September
    26, 2006.” 
    Id. at 453.
    Through the Nationwide Class,
    Plaintiffs seek to mitigate what they perceive is a risk of
    inconsistent judgments resulting from the procedural history
    of this case prior to the consolidation of Wright and West’s
    action with those brought by the other named plaintiffs.
    7
    On September 26, 2006 (the cutoff date for the
    proposed class), the United States Bankruptcy Court for the
    District of Delaware confirmed a reorganization plan for
    Owens Corning after nearly six years of bankruptcy
    proceedings. Pursuant to the order confirming the plan and 11
    U.S.C. § 1141, all claims that existed against Owens Corning
    as of that date were discharged. After Wright and West
    brought suit but before Plaintiffs’ actions were consolidated,
    Owens Corning moved for summary judgment, arguing that
    the claims belonging to Wright and West existed prior to
    September 26, 2006, and were thus discharged when the
    reorganization plan was confirmed. The District Court
    granted summary judgment in favor of Owens Corning, citing
    this Court’s decision in JELD-WEN, Inc. v. Van Brunt (In re
    Grossman’s Inc.), 
    607 F.3d 114
    (3d Cir. 2010) (en banc)
    (“Grossman’s”). In that case, we held that for purposes of
    determining whether a claim is dischargeable in bankruptcy,
    the claim arises when the claimant is exposed to the debtor’s
    product or conduct, regardless of when an injury is
    discovered. 
    Grossman’s, 607 F.3d at 125
    . For Wright and
    West, this meant that their claim arose when they purchased
    their shingles. Since that was before Owens Corning’s
    reorganization plan was confirmed, the District Court
    concluded that Wright and West’s claims were discharged.
    On appeal to this Court, we declined to apply the
    Grossman’s rule retroactively, citing due process concerns.
    See 
    Wright, 679 F.3d at 108
    –09 (3d Cir. 2012). We concluded
    that bankruptcy cases in which reorganization plans were
    confirmed prior to the Grossman’s decision are governed by
    the dischargeability standard articulated in the case that
    Grossman’s overruled, namely Avellino & Bienes v. M.
    Frenville Co. (In re M. Frenville Co.), 
    744 F.2d 332
    (3d Cir.
    8
    1984). 
    Wright, 679 F.3d at 109
    . Since Owens Corning’s
    reorganization plan was confirmed prior to our decision in
    Grossman’s, we held that Frenville governed whether Wright
    and West’s claims were discharged. 
    Id. Under the
    Frenville
    standard, a court must look to the underlying state limitations
    law to determine when a claim arises. 
    Id. at 104
    & n.5. Thus,
    for example, a claim brought under the law of a state in which
    the discovery rule applies arises when the claimant discovers
    the injury. We affirmed in part and reversed in part the
    District Court’s summary judgment, agreeing with the Court
    that Wright and West held “claims” under the Bankruptcy
    Code, 
    id. at 106–07,
    but concluding that the Court erred in
    holding that those claims had been discharged, 
    id. at 109.
    On remand to the District Court, this case was
    consolidated with the cases brought in other districts by
    Gonzalez, Boehm, and the Maags. Because no class had been
    certified at the time of our decision in Wright, that decision
    did not bind unnamed putative class members. Hence
    Plaintiffs’ desire to certify the Nationwide Class, through
    which they seek a judgment declaring that Frenville governs
    the dischargeability of class members’ claims—effectively
    giving our decision in Wright binding classwide effect.
    Owens Corning concedes that, as we made clear in Wright,
    Frenville (not Grossman’s) applies in determining whether
    the claims against it have been discharged in bankruptcy, and
    it has repeatedly—including during oral argument—
    foresworn any intention of raising a discharge defense against
    Plaintiffs or future claimants. Plaintiffs nevertheless argue
    that classwide adjudication of the question we faced in Wright
    is necessary “[t]o avoid inconsistency and needless litigation
    for other consumers.” Plaintiffs Br. 22.
    9
    C
    Plaintiffs moved for certification of the Four-State and
    Nationwide Classes. On March 31, 2016, the District Court
    denied Plaintiffs’ motion. With respect to the Four-State
    Class, the District Court concluded that Plaintiffs had not met
    their burden under Rule 23(b)(3) to show that “questions of
    law or fact common to class members predominate over any
    questions affecting only individual members,” 
    Gonzalez, 317 F.R.D. at 510
    , nor was it persuaded that certifying a class
    under Rule 23(c)(4) to decide issues of liability was
    appropriate. 1 The District Court concluded that the
    Nationwide Class could not satisfy the commonality
    requirement of Rule 23(a) because the only common question
    it presented was not justiciable. Plaintiffs filed a timely
    petition for Rule 23(f) review, which we granted.
    II
    The District Court had jurisdiction under 28 U.S.C.
    § 1332(d). We have appellate jurisdiction over this
    interlocutory appeal under 28 U.S.C. § 1292(e) and Rule
    23(f).
    “We review a class certification order for abuse of
    discretion, which occurs if the district court’s decision rests
    upon a clearly erroneous finding of fact, an errant conclusion
    of law or an improper application of law to fact.” Hayes v.
    Wal-Mart Stores, Inc., 
    725 F.3d 349
    , 354 (3d Cir. 2013)
    1
    Plaintiffs also moved for certification of the Four-
    State Class under Rule 23(b)(2), which the District Court
    denied. Plaintiffs have not appealed that ruling.
    10
    (internal quotation marks omitted). We review de novo
    whether an incorrect legal standard has been used. 
    Id. III In
    this appeal, Plaintiffs argue that the District Court
    denied certification of the Nationwide Class based on an
    erroneous understanding of the requirements for justiciability
    under Article III of the Constitution, and that its denial of
    certification of the Four-State Class was, among other errors,
    improperly grounded in its assessment of the merits, as
    forbidden by the Supreme Court in Amgen Inc. v. Connecticut
    Retirement Plans and Trust Funds, 
    568 U.S. 455
    , 466 (2013).
    Every putative class action must satisfy the four
    requirements of Rule 23(a) of the Federal Rules of Civil
    Procedure: numerosity, commonality, typicality, and
    adequacy. See Amchem Prods., Inc. v. Windsor, 
    521 U.S. 591
    ,
    613 (1997). In addition to the Rule 23(a) requirements, a class
    action must satisfy Rule 23(b)(1), (2), or (3). The party
    seeking certification bears the burden of establishing each
    element of Rule 23 by a preponderance of the evidence. See
    In re Hydrogen Peroxide Antitrust Litig., 
    552 F.3d 305
    , 307
    (3d Cir. 2009). Echoing the Supreme Court, we have
    repeatedly “emphasize[d] that ‘[a]ctual, not presumed
    conformance’ with Rule 23 requirements is essential.” 
    Id. at 326
    (quoting Newton v. Merrill Lynch, Pierce, Fenner &
    Smith, Inc., 
    259 F.3d 154
    , 167 (3d Cir. 2001)). A class action
    “may only be certified if the trial court is satisfied, after a
    rigorous analysis, that the prerequisites of Rule 23(a) have
    been satisfied.” Gen. Tel. Co. of the Sw. v. Falcon, 
    457 U.S. 147
    , 161 (1982). To proceed under Rule 23(b)(3), Plaintiffs’
    proposed Four-State Class must meet the additional
    requirements that “[common] questions of law or fact . . .
    11
    predominate over any questions affecting only individual
    members” and that “a class action is superior to other
    available methods for fairly and efficiently adjudicating the
    controversy.” Fed. R. Civ. P. 23(b)(3).
    We agree with the District Court that the Nationwide
    Class cannot satisfy Rule 23(a)’s commonality requirement
    because the only common question it poses can be answered
    only by way of an advisory opinion, which is forbidden by
    Article III. As we shall explain, because we agree with the
    District Court that the Four-State Class cannot satisfy
    Rule 23(b)(3)’s predominance requirement, we need not
    discuss the other requirements of Rule 23 as they relate to the
    Four-State Class. Finally, the District Court’s conclusion that
    a Rule 23(c)(4) issue class is not an appropriate vehicle for
    the Four-State Class was not an abuse of discretion.
    A
    Plaintiffs first argue that the District Court erred when
    it failed to certify the Nationwide Class under Rule 23. Rule
    23(a) requires that the named plaintiffs share with the rest of
    the putative class at least one “question[] of law or fact.” Fed.
    R. Civ. P. 23(a)(2); see Wal-Mart Stores, Inc. v. Dukes, 
    564 U.S. 338
    , 359 (2011) (“[F]or purposes of Rule 23(a)(2) [e]ven
    a single [common] question will do.” (second and third
    alterations in original) (internal quotation marks omitted)).
    And that common question must be justiciable under Article
    III of the Constitution. See Neale v. Volvo Cars of N. Am.,
    LLC, 
    794 F.3d 353
    , 366 (3d Cir. 2015). In this appeal,
    Plaintiffs must establish the justiciability of the following
    question: what legal standard governs the dischargeability of
    claims against Owens Corning? Failing that, the Nationwide
    Class cannot satisfy the commonality requirement and
    12
    certification is inappropriate under either Rule 23(b)(1)(B) or
    (b)(2). 
    Amchem, 521 U.S. at 613
    . We therefore examine the
    requirements of Article III to determine whether the District
    Court abused its discretion.
    “Article III . . . restricts the power of federal courts to
    ‘Cases’ and ‘Controversies.’” Chafin v. Chafin, 
    568 U.S. 165
    ,
    171 (2013). Accordingly, federal courts may not give
    “opinion[s] advising what the law would be upon a
    hypothetical state of facts.” Lewis v. Cont’l Bank Corp., 
    494 U.S. 472
    , 477 (1990) (internal quotation marks and citation
    omitted). In determining whether an actual controversy exists,
    we have considered “the adversity of the interest of the
    parties, the conclusiveness of the judicial judgment and the
    practical help, or utility, of that judgment.” Step-Saver Data
    Sys., Inc. v. Wyse Tech., 
    912 F.2d 643
    , 647 (3d Cir. 1990).
    Step-Saver was a suit for declaratory relief in which the
    plaintiff corporation sought a declaration that its suppliers
    were responsible for any liability it may have had to its
    customers as a result of the customers’ pending suits against
    it. 
    Id. at 646.
    While Plaintiffs do not invoke the Declaratory
    Judgment Act, 28 U.S.C. §§ 2201–02, they acknowledge that
    their position is analogous to that of one seeking a declaratory
    judgment. The Step-Saver factors are therefore appropriate
    guides to our analysis. See, e.g., Coffin v. Malvern Fed. Sav.
    Bank, 
    90 F.3d 851
    , 853 (3d Cir. 1996) (applying Step-Saver
    factors to justiciability analysis where relief sought was
    “somewhat analogous to . . . a declaration of rights”).
    Despite Owens Corning’s assurances that it will not
    raise a discharge defense, Plaintiffs maintain that the interests
    of the parties are sufficiently adverse to give rise to a
    justiciable case or controversy. They argue, contrary to the
    District Court’s analysis, that Owens Corning would not be
    13
    precluded from raising a discharge defense. Because of the
    discretionary nature of collateral estoppel when asserted by a
    plaintiff who was not party to the original judgment—what
    we call “non-mutual offensive collateral estoppel”—a court
    could theoretically decline to find that Wright precludes a
    discharge defense under these circumstances. So long as such
    a possibility exists, Plaintiffs argue, the parties’ dispute
    remains a live one and their interests are adverse.
    Plaintiffs’ analysis does not change the fact that the
    relief they seek would come from an advisory opinion. Put in
    terms of the Step-Saver factors, the judgment Plaintiffs seek
    on behalf of the Nationwide Class would lack both
    conclusiveness and practical utility. See 
    Step-Saver, 912 F.2d at 647
    . As Plaintiffs acknowledge, because the Frenville test
    requires a fact-intensive analysis of each claim under the
    applicable state limitations law, a court’s declaration that
    “Frenville applies” would not determine whether the claims
    held by individual members of the Nationwide Class were
    discharged. That would depend on the outcome of the
    Frenville analysis as applied to each claim. But Plaintiffs do
    not seek this relief. Instead, they ask that we now declare—as
    we did in Wright—that Frenville applies, but this time in the
    class context. Plaintiffs do so as a preemptive strike in the
    event Owens Corning might raise a discharge defense in
    future litigation.
    This is the opposite of a conclusive judgment. It is
    more akin to the bankruptcy court order we reviewed in
    Coffin, which stated that a debtor’s bankruptcy confirmation
    had not discharged a bank’s mortgage 
    lien. 90 F.3d at 852
    –
    53. We concluded that the order constituted an advisory
    opinion, since it decided “no actual controversy between the
    parties.” 
    Id. at 853.
    The determination of whether the bank’s
    14
    lien had been discharged was “not before the court for
    adjudication,” because the debtor had not moved for an order
    of lien avoidance, and the bank had not yet attempted to
    enforce its lien. 
    Id. That determination
    would have to be
    “made by another court in foreclosure proceedings[,] and the
    bankruptcy court’s advice will have no legal effect.” 
    Id. at 854.
    Here, if Owens Corning were to raise a discharge
    defense against a future claimant, the court hearing that case
    would be required to decide what law governs. That
    contingency is not before us. 2
    Nor are we persuaded that the judgment Plaintiffs seek
    on behalf of the Nationwide Class would be of any utility to
    them beyond what we held in Wright. Contrary to Plaintiffs’
    2
    Plaintiffs’ and amici’s citation to In re Nassau
    County Strip Search Cases, 
    461 F.3d 219
    (2d Cir. 2006), is
    inapposite. There, plaintiffs challenged a county jail’s strip
    search policy under 42 U.S.C. § 1983. The defendants
    conceded the policy’s unconstitutionality, which the district
    court found “removed all common liability issues,” since the
    only remaining issues concerned whether individual class
    members’ rights were violated. In re Nassau 
    County, 461 F.3d at 224
    . The Second Circuit reversed, holding that rather
    than defeating predominance under Rule 23(b)(3), the
    concession acted as a form of classwide proof. 
    Id. at 228–29.
    But justiciability under Article III, not predominance under
    Rule 23(b)(3), is at issue here. Because the Nassau County
    plaintiffs still had § 1983 claims pending before the district
    court, an “actual controversy between the parties” remained.
    
    Coffin, 90 F.3d at 853
    . By contrast, Plaintiffs requested that
    the District Court here preempt a potential defense in a future
    case.
    15
    suggestion, such a judgment would not adjudicate the rights
    of the parties, since it would not decide whether, under
    Frenville, a particular class member’s claims had been
    discharged. It would merely repeat, on a larger scale, what
    this Court has already held. We understand Plaintiffs’ concern
    that Wright’s preclusive effect might be left to the discretion
    of a distant tribunal in a hypothetical future case, but
    Plaintiffs do not cite, and we cannot find, any support for the
    proposition that this fact alone suffices to create a justiciable
    question. 3
    For these reasons, we conclude that the sole common
    question the Nationwide Class asked the District Court to
    3
    Plaintiffs correctly note that, as we explained in
    Gayle v. Warden Monmouth County Correctional Institution,
    “courts should exercise great caution before denying class
    certification” on the basis that it is unnecessary. 
    838 F.3d 297
    ,
    310 (3d Cir. 2016). But contrary to their suggestion, our
    conclusion that certification is inappropriate here is consistent
    with Gayle. In that case, we reversed a denial of class
    certification predicated on the conclusion that it would serve
    “[n]o useful purpose” after the district court’s merits rulings.
    
    Id. at 303.
    We held that “necessity is not a freestanding
    requirement justifying the denial of class certification,” and
    that district courts can consider it only to the extent it bears
    on the ability of a putative class to satisfy the requirements of
    Rule 23. 
    Id. at 310.
    Here, the District Court did not treat the
    usefulness of the relief sought by Plaintiffs as a freestanding
    requirement, but rather as a component of its justiciability
    analysis. As we have explained, that analysis was necessary
    to determine if Plaintiffs could satisfy the commonality
    requirement of Rule 23.
    16
    answer was not justiciable under Article III. The District
    Court rightly concluded that Plaintiffs could not satisfy the
    commonality requirement of Rule 23(a) and therefore did not
    err when it denied Plaintiffs’ motion to certify the Nationwide
    Class. 4
    B
    We turn next to the District Court’s decision regarding
    the Four-State Class. The predominance requirement of
    Federal Rule of Civil Procedure 23(b)(3) “tests whether
    proposed classes are sufficiently cohesive to warrant
    adjudication by representation.” In re Hydrogen 
    Peroxide, 552 F.3d at 310
    –11 (quoting 
    Amchem, 521 U.S. at 623
    ).
    Predominance requires “[i]ssues common to the class [to]
    predominate over individual issues[,]” In re Prudential Ins.
    Co. Am. Sales Practice Litig., 
    148 F.3d 283
    , 313–14 (3d Cir.
    1998), a “far more demanding” standard than the
    commonality requirement of Rule 23(a), 
    Amchem, 521 U.S. at 623
    –24. To assess whether predominance is met at the class
    certification stage, a district court must determine whether the
    essential elements of the claims brought by a putative class
    are “capable of proof at trial through evidence that is common
    4
    Plaintiffs complain that despite their request at oral
    argument for certification under Rule 23(b)(2) as an
    alternative to certification under Rule 23(b)(1)(B), the District
    Court’s opinion does not address the appropriateness of Rule
    23(b)(2) as a vehicle for the Nationwide Class. The need for
    such an analysis, however, was obviated by the District
    Court’s conclusion that the Nationwide Class failed to satisfy
    the commonality requirement of Rule 23(a), which applies to
    class actions under both Rule 23(b)(1)(B) and (b)(2).
    17
    to the class rather than individual to its members.” In re
    Hydrogen 
    Peroxide, 552 F.3d at 311
    –12. This determination
    requires a “rigorous assessment of the available evidence and
    the method or methods by which plaintiffs propose to use the
    evidence to prove” these elements. 
    Id. at 312.
    “If proof of the
    essential elements of the cause of action requires individual
    treatment, then class certification is unsuitable.” 
    Newton, 259 F.3d at 172
    . Accordingly, we examine the essential elements
    of Plaintiffs’ claims on behalf of the Four-State Class, as well
    as the evidence they propose to use, “through the prism” of
    the predominance requirement to determine whether the
    District Court properly denied class certification. Marcus v.
    BMW of N. Am., LLC, 
    687 F.3d 583
    , 600 (3d Cir. 2012)
    (citation omitted).
    Plaintiffs proffer numerous claims, but each can be
    categorized as one of the following: breach of express
    warranty, breach of implied warranty of merchantability,
    violation of state consumer protection statutes, and unjust
    enrichment. In the District Court, Plaintiffs pointed to two
    questions central to all claims that, on their view,
    predominated over individual issues: whether Oakridge
    shingles suffer from a common defect, and if so, whether
    Owens Corning misrepresented the shingles’ expected useful
    life. As the District Court observed, the defect question is
    primary, because success on each claim requires a finding
    that Oakridge shingles are defectively designed. This is
    because “[t]he only misrepresentations or omissions that
    Owens Corning is accused of making are that Oakridge-brand
    shingles will last for at least 25 years, or for the same number
    of years as the limited shingle warranty.” 
    Gonzalez, 317 F.R.D. at 512
    . Owens Corning argued that “[i]f a class
    member’s Oakridge shingle was not defective, no warranty
    18
    was breached. . . . Similarly, if [the] . . . shingles were not
    defective, then Owens Corning’s conduct was not . . .
    actionable under the state consumer fraud acts; nor has
    Owens Corning unjustly retained any benefit.” App. 2824.
    Defective design is therefore an essential element of
    Plaintiffs’ misrepresentation-based claims, and whether it is
    susceptible to classwide evidence is dispositive of whether
    Plaintiffs can satisfy predominance.
    While the parties agreed that the defect question
    underpins this case, they disagreed about the implications of
    this fact for the predominance analysis. Plaintiffs argued that
    the defect question was common and predominant for
    purposes of Rule 23(b)(3). Owens Corning countered that
    while the question may be essential to this litigation, it could
    not be “proven using classwide evidence,” and thus neither
    could Plaintiffs’ misrepresentation claims. App. 2824. During
    the proposed class period, Owens Corning noted, 23 types of
    Oakridge shingles were designed according to 500 different
    specifications. As Plaintiffs acknowledged, the useful life of a
    shingle could be estimated only upon inspection of that
    shingle. Finally, Owens Corning argued that Plaintiffs’
    admission that a significant proportion of Oakridge shingles
    may in fact last the length of their warranties, i.e., lack any
    defect, distinguishes this case from the defective-products
    cases Plaintiffs cited in which courts certified a class after
    finding a predominant common question.
    In response, Plaintiffs argued that their theory of
    defective design did not require them to show that all
    Oakridge shingles were prone to fail during their warranty
    periods. According to Plaintiffs, all Oakridge shingles could
    be considered defectively designed, regardless of their actual
    measurements or performance, because Owens Corning’s
    19
    design specifications provided for a range of measurements
    that resulted in some shingles having a higher-than-advertised
    likelihood of failing before the warranties expired. It therefore
    did not matter that Plaintiffs’ expert could not identify the
    particular measurements that supposedly rendered the
    Oakridge specifications defective. Regardless of the quality
    of the shingles on their own roofs, all Oakridge customers had
    unknowingly entered a “shingle lottery,” 
    Gonzalez, 317 F.R.D. at 478
    –79. Because this theory of defect applies to the
    entire class, Plaintiffs argued, a predominant common
    question existed and Rule 23(b)(3) was satisfied.
    The District Court rejected this argument and agreed
    with Owens Corning that it would be “impossible for
    plaintiffs to meet their burden to prove a design defect by
    evidence common to the class.” 
    Id. at 512.
    Because the
    presence of a design defect was an essential element of
    Plaintiffs’ misrepresentation-based claims, the District Court
    concluded that they could not be proved by common
    evidence. Given that, as Plaintiffs acknowledged, the design
    defect and misrepresentation issues form the core of their
    theory of liability, the Court concluded that the inability to
    prove these issues through classwide evidence was fatal to
    predominance and thus to certification of the Four-State
    Class.
    Plaintiffs’ theory of design defect—which absolves
    them of the need to identify any particular problems with
    their shingles—is the focus of Plaintiffs’ appeal. According to
    Plaintiffs, the District Court’s rejection of this theory was an
    abuse of discretion because the District Court: (1) misread
    product-defect cases in this circuit and others; (2) improperly
    excluded expert testimony; and (3) contravened Amgen by
    assessing the merits of Plaintiffs’ claims at the class
    20
    certification stage. In the alternative, Plaintiffs argue that the
    District Court should have certified a “liability-only class”
    under Rule 23(c)(4) because that “resolution of the common
    liability issues would materially advance the litigation.”
    Plaintiffs Br. 21. We will address these arguments in turn.
    1
    Plaintiffs argue that, because customers were “playing
    roulette in assuming that Oakridge shingles will last for the
    full warranty period,” Plaintiffs Br. 15, they “did not get the
    benefit of the[ir] bargain,” regardless of their shingles’ actual
    performance. Plaintiffs Br. 40. Consequently, they liken their
    case to a number of product-defect cases in which courts have
    certified a class despite an alleged defect not manifesting
    itself in each product. For example, they cite Sixth and
    Seventh Circuit cases involving Whirlpool washing machines
    that tended to accumulate mold because of an alleged design
    defect. In each case, class certification was upheld despite the
    absence of mold accumulation in the majority of class
    members’ washing machines. See In re Whirlpool Corp.
    Front-Loading Washer Prods. Liab. Litig., 
    722 F.3d 838
    (6th
    Cir. 2013); Butler v. Sears, Roebuck & Co., 
    702 F.3d 359
    (7th
    Cir. 2012), cert. granted, judgment vacated, 
    569 U.S. 1015
    (2013), judgment reinstated on remand, 
    727 F.3d 796
    (7th
    Cir. 2013).
    The cases involving Whirlpool washing machines are
    not on point because there is a critical distinction between a
    latent defect and a non-existent one. The defect in the
    washing machine cases was allegedly present in all washing
    machines manufactured under a particular line, even if the
    defect had not yet manifested itself. See In re Whirlpool
    Corp. Front-Loading Washer Prods. Liab. 
    Litig., 722 F.3d at 21
    847. Plaintiffs in those cases had adduced evidence at the
    class certification stage indicating that the allegedly defective
    washing machines had all been built according to nearly
    identical designs. See 
    id. (explaining that
    the various types of
    front-loading washing machines at issue shared “nearly
    identical engineering”); see also 
    Butler, 702 F.3d at 361
    (noting “all Kenmore-brand frontloading ‘high efficiency’
    washing machines” were alleged to suffer from the same
    defect). This meant that the lack of a mold problem in some
    machines was the result of latency, not the absence of a
    defect.
    By contrast, Plaintiffs here do not identify a particular
    defect that can be attributed to all Oakridge shingles. They
    instead admit that a great many Oakridge shingles will last
    through the end of their warranty periods, and that a shingle-
    by-shingle inspection is necessary to distinguish ones that are
    likely to fail before the end of their warranty periods from
    ones that are likely to perform as expected (i.e., that are not
    defective). This case is thus unlike those in which the latency
    of an alleged defect did not pose an obstacle to certification.
    For the same reasons, Plaintiffs’ citations to Rikos v.
    Procter & Gamble Co., 
    799 F.3d 497
    (6th Cir. 2015); Wolin
    v. Jaguar Land Rover N. Am., LLC, 
    617 F.3d 1168
    (9th Cir.
    2010); Pella Corp. v. Saltzman, 
    606 F.3d 391
    (7th Cir. 2010)
    (per curiam); and Daffin v. Ford Motor Co., 
    458 F.3d 549
    (6th Cir. 2006) are not persuasive. In each case, the plaintiffs
    were able to identify a particular defect that, whether it had
    manifested itself, allegedly existed in each of the relevant
    products. See 
    Rikos, 799 F.3d at 519
    (noting the allegation
    that nutritional supplement is “snake oil” and yields no
    benefit to any class members); 
    Wolin, 617 F.3d at 1172
    (noting that a geometric defect in vehicle alignment was
    22
    alleged to be present in each class member’s car); 
    Pella, 606 F.3d at 392
    (noting that all ProLine casement windows were
    allegedly designed to allow water to seep behind aluminum
    casing, accelerating wood rot); 
    Daffin, 458 F.3d at 551
    (observing that allegedly defectively designed throttle body in
    named plaintiff’s vehicle was identical to that found in all
    vehicles covered by the class definition). Not only do
    Plaintiffs fail to identify an alleged defect common to all
    Oakridge shingles, they fail to specify where within a range
    of measurements a particular design “crosses the line from
    producing nondefective products to producing defective
    products or to quantify how often defective products, versus
    nondefective products, were produced.” 
    Gonzalez, 317 F.R.D. at 513
    .
    As we noted, Plaintiffs attempt to circumvent the need
    to identify a common defect by, in effect, redefining the
    concept to include a subset of defective shingles.
    Unsurprisingly, they cite no case sanctioning such a
    remarkable proposition. Plaintiffs’ citation to In re IKO
    Shingle Products Liability Litigation, 
    757 F.3d 599
    (7th Cir.
    2014), a roofing shingle case in which not all shingles were
    manifestly defective, is unavailing. In that case, the Multi-
    District Litigation Court’s order denying class certification
    was vacated because it had incorrectly imposed a
    commonality-of-damages requirement at the class
    certification stage. 
    IKO, 757 F.3d at 603
    . The plaintiffs in that
    case—unlike Plaintiffs here—had no difficulty articulating a
    defect common to all of their shingles, namely, their failure to
    meet the manufacturer’s promise that they satisfied the
    applicable ASTM standard. 
    Id. at 599.
    Equally unavailing is Plaintiffs’ analogy to McManus
    v. Fleetwood Enterprises, Inc., 
    320 F.3d 545
    (5th Cir. 2003),
    23
    in which certification of a class was upheld on the ground that
    class members “did not receive the benefit of their bargain.”
    
    Id. at 552
    (internal quotation marks and citation omitted). The
    plaintiffs in that case were nevertheless required to explain
    why the motor homes they had purchased were defective, and
    their explanation applied to all class members: none of the
    motor homes could “safely tow a normal car without
    supplemental breaks.” 
    Id. at 551–52.
    As in all of the other
    cases Plaintiffs cite, members of the putative class in
    McManus were required to articulate a defect allegedly
    present in all relevant products. Regardless of the theory of
    liability pursued, Rule 23 requires, if nothing else, that a
    putative class must describe the product’s defect on a
    classwide basis. If proponents of the class do not allege a
    defect common to the class, the defectiveness of a given
    product is, by necessity, not susceptible to proof by classwide
    evidence.
    Finally, Plaintiffs’ reliance on Tyson Foods, Inc. v.
    Bouaphakeo, 
    136 S. Ct. 1036
    (2016), is misplaced as well. In
    that case, a class of employees claimed Tyson Foods violated
    the Fair Labor Standards Act when it failed to compensate
    them for time spent “donning and doffing” protective 
    gear. 136 S. Ct. at 1042
    . Because Tyson had failed to keep records
    for the relevant period, the class proposed to use a study
    measuring uncompensated overtime using a representative
    sample of employees. 
    Id. at 104
    3. The Supreme Court held
    that the class could extrapolate from the results of the study to
    establish classwide liability, even though the parties agreed
    that some class members were properly compensated,
    because the study was “the only practicable means to collect
    and present relevant data.” 
    Id. at 104
    6. Tyson objected that
    uninjured class members might share in or increase the
    24
    amount of the awarded damages, but the Court concluded that
    this was an issue the parties could address upon
    apportionment of the damages. 
    Id. at 104
    9–50. Despite the
    necessary inquiries into individual work times, the Court held
    that the question of whether the time employees spent
    “donning and doffing” the gear was compensable work under
    the FLSA satisfied the predominance requirement. 
    Id. at 104
    5–46. This appeal is unlike Tyson. The FLSA question in
    Tyson was a common one because its resolution would
    determine the scope of all class members’ rights and leave
    only questions of individual damages. Here, by contrast,
    resolving the defect issue can be done only by examining
    each individual shingle or by accepting a speculative theory
    of defect.
    In this case, instead of alleging a defect common to the
    class that might be proved by classwide evidence, Plaintiffs
    invite us to equate the existence of a defect with the mere
    possibility that one might exist. We find no support in
    Rule 23 or caselaw for class certification on such a
    speculative basis. Far from abusing its discretion, the District
    Court properly concluded that Plaintiffs’ novel reformulation
    of the concept of a product defect could not be permitted to
    work an end run around the requirements of Rule 23(b)(3).
    2
    Plaintiffs argue that the District Court also abused its
    discretion by ruling inadmissible the testimony proffered by
    Rutila based on his testing of Oakridge shingles. The Court
    ruled that Rutila could not testify because, among other
    reasons, the results were tainted by selection bias and
    statistically insignificant in light of the millions of Oakridge
    shingles installed during the class period. As Rutila admitted,
    25
    the 298 shingles he tested had been returned in connection
    with a warranty claim, so they were the antithesis of a random
    sample of Oakridge shingles.
    Plaintiffs make several arguments as to why the
    Court’s ruling on Rutila’s testimony was erroneous, but we
    need not address them, because our Rule 23 analysis is
    unaffected by the outcome. Even if all of the testimony
    offered by Rutila were admissible, Plaintiffs would not have
    been able to cure their inability to identify a meaningful
    defect in Oakridge shingles susceptible to classwide evidence.
    As the District Court noted, Rutila’s testing did not enable
    him to identify when a shingle “crosses the line and becomes
    defective.” 
    Gonzalez, 317 F.R.D. at 479
    . Nor would it have
    negated Rutila’s own admissions that (1) one can identify a
    shingle as defective, however that term is defined, only after
    examining it individually, and (2) even shingles designed at
    the low end of Owens Corning’s specifications will not
    necessarily fail before the end of their warranty periods. The
    fundamental problem thus remains: Plaintiffs cannot identify
    what is defective about their shingles, let alone how the
    unidentified defect is susceptible to proof common to all class
    members. 5 It is therefore unnecessary for us to undertake a
    5
    Although the class definition’s limitation to shingles
    that “manifested any cracking, degranulation, fragmentation,
    or deterioration during the warranty coverage period,”
    
    Gonzalez, 317 F.R.D. at 453
    , might seem to solve this
    problem, it is irrelevant to the predominance inquiry. The
    definition limits who may be a member of the class, but it
    does not purport to define the elements of the claims brought
    on its behalf. Only the latter are relevant to the predominance
    inquiry.
    26
    Daubert analysis to determine whether the District Court
    abused its discretion in holding Rutila’s testimony
    inadmissible. 6
    6
    After it excluded Rutila’s testing, the District Court
    ruled that Rutila would be permitted to testify that mat mass
    of approximately 1.5 pounds per 100 square feet would
    ensure a non-defective shingle. The Court would not permit
    him to testify, however, as to what measurements of asphalt
    mass and net weight would ensure a non-defective shingle.
    Even if all of these opinions were admissible, however, they
    would not help Plaintiffs articulate a meaningful theory of
    defect susceptible to classwide evidence, for two reasons.
    First, an opinion that one measurement will guarantee
    adequate performance does not mean that anything less is
    defective. Second, as discussed at the Daubert hearing, “it is
    the relationship between mat mass, asphalt mass and net
    weight that must be coordinated in order to produce a shingle
    that will be reliable.” App. 390. Thus, a shingle with an
    inadequate mat mass might not fail before the end of the
    applicable warranty period if its other measurements are
    sufficient. The fact that this relationship can only be assessed
    upon inspection of a particular shingle only compounds the
    evidentiary problem for Plaintiffs. At any rate, Plaintiffs only
    challenge the District Court’s exclusion of testimony based
    on Rutila’s testing of returned shingles.
    27
    3
    Plaintiffs argue that, to the extent the District Court
    had reservations about their theory of defect, the Supreme
    Court’s decision in Amgen required it to set them aside for
    purposes of the class certification decision: “[t]he district
    court may not have liked this theory, but class certification
    was not the place to adjudicate it.” Plaintiffs Br. 41.
    In Amgen, the Supreme Court cautioned district courts
    not to “put[] the cart before the horse” by allowing their
    views of the merits to affect their analysis of the independent
    question whether a putative class satisfies the requirements of
    Rule 
    23. 568 U.S. at 460
    . “[T]he office of a Rule 23(b)(3)
    certification ruling is not to adjudicate the case; rather, it is to
    select the method best suited to adjudication of the
    controversy fairly and efficiently.” 
    Id. (alteration and
    internal
    quotation marks omitted). While in some cases it may be
    inevitable that the class-certification analysis “entail some
    overlap with the merits of the plaintiff’s underlying claim,”
    
    id. at 465–66
    (quoting 
    Dukes, 564 U.S. at 351
    ), as a general
    matter, “Rule 23 grants courts no license to engage in free-
    ranging merits inquiries at the certification stage.” 
    Id. at 466.
    Plaintiffs call the District Court’s opinion the
    “antithesis of Amgen.” Plaintiffs Br. 36. According to
    Plaintiffs, the merits of their theory of defect were irrelevant
    to class certification, and thus off limits under Amgen. But the
    District Court’s analysis, they correctly note, is laced with
    merits determinations. For example, the Court characterized
    Plaintiffs’ theory of defect as “seemingly novel and illogical,”
    
    Gonzalez, 317 F.R.D. at 513
    , and concluded that Plaintiffs
    had “submit[ted] no legal authority to support their
    proposition that a design specification that sets a range of
    28
    measurements, some of which will produce defective
    products and some of which will not, can establish a design
    defect claim,” 
    id. at 495.
    Plaintiffs argue that these merits
    determinations “infected the entire certification process,”
    requiring a remand. Plaintiffs Br. 2.
    Because “all of the claims in the lawsuit will rise or
    fall on the question of defect,” and at least some of the
    evidence they propose to use—including portions of Rutila’s
    testimony and internal Owens Corning communications—is
    applicable to all class members, Plaintiffs claim they have
    satisfied their burden under Amgen by identifying a “common
    question[] that will yield [a] common answer[].” Reply
    Br. 10. (emphasis omitted). To be sure, if defect is defined in
    the manner Plaintiffs propose, it does not require a leap to
    conclude that the alleged defect is susceptible to classwide
    evidence, since class members would not be required to show
    anything about their individual shingles. But Plaintiffs offer
    no support for the idea that it is a violation of Amgen to
    recognize at the certification stage that the “question of
    defect” they propose is only superficially a “common
    question,” just as any question becomes universal when it
    includes the word “all.” Nothing about Amgen or Rule 23
    limits district courts in this way. As the Amgen Court
    recognized, merits determinations are permitted “to the
    extent . . . relevant to determining whether the Rule 23
    prerequisites for class certification are 
    satisfied.” 568 U.S. at 466
    . As with the other requirements of Rule 23, the
    predominance requirement of Rule 23(b)(3) is “not [a] mere
    pleading rule[.]” In re Hydrogen 
    Peroxide, 552 F.3d at 316
    .
    To determine whether the requirement is met, a court may
    “delve beyond the pleadings” and answer questions that are
    often “enmeshed in the factual and legal issues comprising
    29
    the plaintiff’s cause of action.” 
    Newton, 259 F.3d at 167
    (internal quotation marks and citations omitted). Courts “must
    resolve all factual or legal disputes relevant to class
    certification, even if they overlap with the merits—including
    disputes touching on elements of the cause of action.” In re
    Hydrogen 
    Peroxide, 552 F.3d at 307
    .
    In this context, the District Court was not bound—by
    Amgen or otherwise—to deem sufficient for certification the
    “question of defect” as Plaintiffs presented it. It is
    incongruous to argue simultaneously, as Plaintiffs do, that
    their theory of defect is central to their claims and that its
    coherence and legal foundation are irrelevant to the
    certification decision. By rejecting Plaintiffs’ theory, the
    District Court did not find as a matter of fact that Oakridge
    shingles are not defective. It merely applied Rule 23’s
    predominance requirement, under which Plaintiffs were
    required at the certification stage to identify a defect that
    affected all class members’ shingles, regardless of whether
    the defect will ultimately be proved by a preponderance of the
    evidence at the merits stage. It does not follow from Amgen
    that a common question suffices for purposes of Rule 23 by
    virtue of Plaintiffs’ ipse dixit. Instead, it remains the task of
    district courts, through application of the rule’s requirements
    to the facts and claims before it, to determine what constitutes
    a “question[] of law or fact common to class members.” Fed.
    R. Civ. P. 23(b)(3). The District Court’s determination in this
    regard, while fatal to certification, was nonetheless squarely
    within the discretion afforded it by Amgen and Rule 23. What
    Plaintiffs attack as the District Court’s “obsession with the
    merits,” Plaintiffs Br. 36, we conclude was instead nothing
    more than the “rigorous analysis” required to determine
    30
    whether the proposed class actually met the requirements of
    Rule 23. 
    Falcon, 457 U.S. at 161
    . 7
    Our conclusion that the District Court did not abuse its
    discretion in rejecting Plaintiffs’ theory of defect for purposes
    of Rule 23 ends our analysis of whether the Four-State Class
    7
    Plaintiffs quote several other passages in the District
    Court’s opinion in which the Court discusses, or appears to
    discuss, the merits of Plaintiffs’ defect claim, allegedly in
    violation of Amgen. These passages do not show what
    Plaintiffs suggest when read in context. For example,
    Plaintiffs call “especially revealing” the District Court’s
    observation that because it had ruled Rutila’s testing
    inadmissible, “[P]laintiffs were tasked with proving their
    design defect claim by way of [other] evidence,” 
    Gonzalez, 317 F.R.D. at 478
    . Plaintiffs Br. 35. The Court was not
    suggesting that Plaintiffs were required to prove the merits of
    their defect claim at the class certification stage, though that
    might be inferred by Plaintiffs’ incomplete quotation, which
    stops after the word “claim.” Rather, the Court was simply,
    and correctly, noting that it was Plaintiffs’ burden under Rule
    23 to show that the defect claim was susceptible to proof by
    classwide evidence despite the inadmissibility of this portion
    of Rutila’s testimony. The other passages Plaintiffs cite turn
    out to be similarly innocuous. To the extent Plaintiffs argue
    that the District Court’s Rule 23 analysis violated Amgen in
    its treatment of their misrepresentation-based claims, we need
    not address this issue, because, as explained, the inadequacy
    of Plaintiffs’ theory of defect for purposes of Rule 23(b)(3) is
    alone fatal to class certification.
    31
    should have been certified under Rule 23(b)(3). 8 As we have
    explained, because Plaintiffs cannot show that liability for
    defective design is susceptible to classwide evidence, they are
    equally unable to show the same in support of their
    misrepresentation claims. They are thus unable to show that
    “[common] questions of law or fact . . . predominate over any
    questions affecting only individual members,” as
    Rule 23(b)(3) requires. Our conclusion that predominance is
    lacking makes it unnecessary for us to discuss whether
    Plaintiffs have satisfied the other requirements of Rule 23.
    The District Court did not abuse its discretion in denying
    certification of the Four-State Class under Rule 23(b)(3).
    8
    Despite its conclusion that Plaintiffs’ “inability to
    prove the existence of a design defect by evidence that is
    predominantly common to the class is fatal to [their]
    misrepresentation-based legal claims,” the District Court
    undertook an analysis of the latter “for the sake of
    completeness.” 
    Gonzalez, 317 F.R.D. at 515
    . For reasons
    already explained, we agree with this conclusion.
    32
    4
    Plaintiffs argue in the alternative that the District Court
    abused its discretion in denying certification of the Four-State
    Class as a liability-only issue class under Rule 23(c)(4),
    which provides that “[w]hen appropriate, an action may be
    brought or maintained as a class action with respect to
    particular issues.” In Gates v. Rohm & Haas Co., 
    655 F.3d 255
    (3d Cir. 2011), we enumerated several non-exhaustive
    factors relevant to assessing whether certification of an issue
    class under Rule 23(c)(4) is appropriate. Those factors
    include “the efficiencies to be gained by granting partial
    certification in light of realistic procedural alternatives” and
    “the substantive law underlying the claim(s).” 
    Id. at 273.
    Plaintiffs sought to pursue their claims as an issue
    class under Rule 23(c)(4) because the issues involved rest on
    a “common core of facts,” so efficiencies would be gained by
    resolving them in a single proceeding. 
    Gonzalez, 317 F.R.D. at 528
    . The District Court disagreed, in part for the same
    reasons it concluded that Plaintiffs could not satisfy the
    predominance requirement of Rule 23(b)(3): because the
    issues are not susceptible to “proof by common
    evidence[,] . . . [n]o efficiencies are gained by litigating
    [them] on a classwide basis.” 
    Id. “[A] court’s
    decision to exercise its discretion under
    Rule 23(c)(4), like any other certification determination under
    Rule 23, must be supported by rigorous analysis.” Hohider v.
    United Parcel Serv., Inc., 
    574 F.3d 169
    , 200–01 (3d Cir.
    2009). While Plaintiffs are correct to point out that the
    appropriateness of certifying a Rule 23(c)(4) class is
    analytically independent from the predominance inquiry
    under Rule 23(b)(3), a case may present concerns relevant to
    33
    both. See 
    Gates, 655 F.3d at 272
    –74. This is such a case.
    Unlike a situation in which a Rule 23(c)(4) class might be
    appropriate because liability is capable of classwide treatment
    but damages are not, Plaintiffs offer no theories of liability for
    which classwide treatment is apt. The District Court therefore
    correctly determined that a Rule 23(c)(4) class would not
    “materially advance resolution of the underlying claims,” 
    id. at 269,
    any more than would a class under Rule 23(b)(3).
    Accordingly, we cannot conclude that the District Court’s
    denial of certification of the Four-State Class under
    Rule 23(c)(4) was an abuse of discretion.
    IV
    For the reasons stated, the District Court did not abuse
    its discretion in denying Plaintiffs’ motion for class
    certification. We will affirm.
    34