In Girolametti v. Michael Horton Assocs., Inc., the Supreme Court determined when a subcontractor’s rights will be affected by an arbitration in which the subcontractor did not participate. Girolametti v. Michael Horton Assocs., Inc., 332 Conn. 67, 71 (2019). This decision was based upon “the rule of claim preclusion,” which prevents the re-litigation of a claim once the claim has had a full and fair hearing “regardless of what additional or different evidence or legal theories might be advanced in support of it.” Id. at 75. In order for claim preclusion to apply, the following requirements must be met:
(1) The prior judgment must have been rendered on the merits by a court of competent jurisdiction;
(2) The parties to the prior and subsequent actions must be the same or in privity;
(3) There must have been an adequate opportunity to litigate the matter fully; and
(4) The same underlying claim must be at issue.
Id. After applying these requirements in Girolametti, the Supreme Court held that the owner’s claims against the subcontractors were barred because they were either brought or could have been brought in the owner’s arbitration against the general contractor.