This is an appeal by the insured plaintiffs from the judgment of the United States District Court for the Eastern District of New York (Irizarry, J.) granting the defendant insurer’s motion for summary judgment dismissing the suit. Plaintiffs-Appellants Irma and Blanche Dalton (collectively “the Daltons”), as proprietors of a building at 39 Sidney Place, Brooklyn, N.Y., were insured under a so-called “all risk” policy issued by the defendant Har-leysville Worcester Mutual Insurance Company, which covered “collapse” caused by “[hjidden decay.” The building was found to be so severely damaged by hidden decay that the New York City Department of Buildings issued a notice to vacate because of the building’s structural instability. The Daltons claimed for the damage. When Harleysville disclaimed coverage, the Daltons brought this suit.
Both sides moved for summary judgment. The district court granted summary judgment in favor of Harleysville, holding that the damage to the Daltons’ building came within the policy’s express exclusion of “bulging,” and in any event did not come within the concept of “collapse” under New York law, which the court concluded is triggered only by “total or near total destruction.” We believe the district court misread the evidence in relation to the terms of the policy, and drew inappropriate significance from the refusal of the New York Court of Appeals to review lower court precedent. The judgment is vacated and the case remanded.
BACKGROUND
The following facts are undisputed. The Daltons own a three-story townhouse located at 39 Sidney Place, Brooklyn, New York, upon which in May 2003 Harleysville issued an all-risk insurance policy. On February 25, 2004, while the policy was in effect, damage to an interior common party wall between the Daltons’ building and an adjacent building was discovered. The Daltons immediately reported the damage and claimed against the policy. On June 10, 2004, the New York City Department of Buildings ordered that the building be vacated.
*90 Harleysville disclaimed coverage, asserting that the damage fell within the policy exclusions. The Daltons then retained Benjamin Lavon, a professional engineer, to conduct an analysis of the structural failure of the party wall. The Daltons and Harleysville agreed to rely on Lavon’s report for purposes of this litigation. Lavon observed that the party wall exhibited large bulging of the masonry wall, movements, deteriorating masonry, and crumbling mortar joints. The conditions were hidden from view by a wall finish, which prevented observation of the deterioration. Lavon concluded that the “structural failure of the Party Wall resulted from deteriorated mortar joints” and that “the deterioration of the mortar joints that resulted in the Collapse of the Party Wall was hidden from view” because of a finish which completely covered the Party Wall.
The policy provides that Harleysville will pay for “direct physical loss of or damage ... caused by or resulting from any Covered Cause of Loss.” A Covered Cause of Loss includes risks of direct physical loss.
Section B of the policy provides for exclusions. Section B.2.k(2) excludes coverage for “decay, deterioration, ... or any quality in [the] property that causes it to damage or destroy itself.” Section B.2.k(4) excludes coverage for “[s]ettling, cracking, shrinking or expansion.” And finally, Section B.2.i. excludes coverage for “[cjollapse, except as provided in the Additional Coverage for Collapse ” (emphasis added).
The Additional Coverage for Collapse under Section A.5.d. states that Harleys-ville will pay for loss or damage resulting from “risks of direct physical loss involving collapse of a building or any part of a building caused ... by ... (2)[h]idden decay.” It adds, however, that collapse does not include “settling, cracking, shrinkage, bulging or expansion.”
The district court granted the defendant insurer’s motion for summary judgment, relying essentially on two reasons. First, the court construed the Lavon report as meaning that the damage to the building-consisted of “bulging,” which is expressly excluded by the terms of the Additional Coverage for Collapse. Second, the court read the opinions of New York State courts, citing
Graffeo v. U.S. Fidelity & Guaranty Co.,
DISCUSSION
Under New York law, an insurance contract must be interpreted so that a clear and unambiguous policy provision is given its plain and ordinary meaning. U.S.
Fid. & Guar. Co. v. Annunziata,
The policy in question is an all-risk policy for damage to the covered building. Under an all-risk policy, any losses caused by fortuitous peril are covered unless the policy contains an express provision excluding the losses.
See Parks Real Estate Purchasing Group v. St. Paul Fire & Marine Ins. Co.,
A. The Lavon Report did not attribute collapse to “bulging.” The district court reasoned as follows: “The Daltons purchased an insurance policy which ... explicitly did not insure ... against bulging caused by hidden decay, which is exactly what the Daltons’ own expert [Lavon] reported was the cause of the structural impairment. Equating bulging with collapse, which is what the Daltons are asking the court to do, is an unreasonable reading of the Policy.”
We believe this reasoning was based on a misunderstanding of Lavon’s report and the terms of the policy. The court understood Lavon’s report to identify “bulging” as the defect constituting the collapse of the party wall. But that is not what La-von wrote. He did indeed mention “bulging,” noting that “the party wall exhibited large bulging of the masonry.” If this had been the only defect Lavon observed, we would agree with the district court that coverage would be excluded by the clause of the “Additional Coverages” that, after specifying coverage for “collapse,” adds that “[c]ollapse does not include ... bulging.”
But bulging was not the only defect that Lavon observed. As noted above, he also observed “crumbling and deteriorated [mortar joints] that were hidden from view,” and he concluded:
(a) [T]he structural failure of the Party Wall resulted from deteriorated mortar joints.
(b) [T]he deterioration of the mortar joints that resulted in the Collapse of the Party
Wall was hidden from view....
The condition Lavon identified as the cause of collapse was not “bulging,” which the policy excludes, but hidden deterioration. The policy expressly covers “collapse” if caused by “[h]idden decay.” (Lavon noted that he used the words “deterioration” and “decay” interchangeably.) We therefore believe the district court was mistaken in construing Lavon’s finding of collapse to be predicated on the excluded condition, “bulging.”
B.
New York law is unsettled as to the meaning of “collapse.”
Citing a ruling of the New York Supreme Court, Appellate Division, Second Department,
Graffeo,
This was a misunderstanding of the significance of the denial of a motion for leave to appeal an Appellate Division ruling. The district court construed it as the equivalent of an affirmance of the lower court’s ruling. Refusal to review the lower court’s ruling has no such significance. The Court of Appeals recently reiterated that the “denial of a motion for leave to appeal is not equivalent to an affirmance
*92
and has no precedential value.”
Franklin v. Miner,
The state of the law in New York with respect to the meaning of the term “collapse” in such a policy is a conflict of Appellate Division rulings as to whether “substantial impairment of the structural integrity of the building” suffices to come within the term, as held by the Third Department in Grunberg, or whether “total or near total destruction” is required, as held by the Second Department in Graffeo. 1
Accordingly, New York law provides no clear answer whether coverage for “collapse” caused by “hidden decay” covers a building whose structural integrity was impaired by deteriorated mortar joints that were hidden from view, or requires that the building have suffered a total ,or near-total destruction (or some other formulation the Court of Appeals may eventually settle on).
C. Suddenness is not required. Har-leysville argues that, regardless of whether collapse requires near-total destruction or is satisfied by substantial impairment of integrity, New York law requires in either scenario that the condition arise suddenly. In support, it cites both Grunberg and Bailey. In both eases, the courts concluded that collapse under the policies at issue required a sudden destructive force, and remanded for trial of the question whether the impairment of structural integrity was the product of a sudden destructive force or a slow deterioration.
The argument fails. While we do not know the full text of the policies in those *93 cases, we can be confident they differed from this policy with regard to any requirement of suddenness. The policy at issue expressly provides coverage for collapse caused by “hidden decay” and “hidden insect or vermin damage.” By their very nature, hidden decay and hidden insect or vermin damage occur slowly and not as a sudden destructive force. Even if the Grunberg and Bailey opinions should be read to mean that the term “collapse,” without further explanation, requires a sudden destructive force, that is surely not the case where the policy in question defines collapse in a manner which expressly includes conditions that occur only slowly.
D. We conclude that the plain text of Harleysville’s policy is “ambiguous and susceptible of two reasonable interpretations,”
State v. Home Indem. Co.,
Having found a genuine ambiguity, we must apply the rule that ambiguities in insurance policies are generally resolved in favor of the insured.
Annunziata,
CONCLUSION
The Judgment is VACATED and the case remanded for further proceedings.
Notes
. The holding of the Appellate Division, First Department in
Rector St.,
Nor is the issue answered by our court's ruling in
Bailey v. Hartford Fire Insurance Co.,
