The defendant, Acadia Insurance Company (Acadia), appeals a Superior Court (Manias, J.) order granting summary judgment in favor of the plaintiff, Pro Con Construction, Inc. (Pro Con). We reverse and remand.
In 1993, Oracle Corporation hired Pro Con to manage the construction of its facility in Nashua. Pro Con hired several subcontractors for the project, including Decorative Concepts, an interior painting contractor. During the project, Decorative Concepts carried a commercial general liability policy issued by Acadia that contained an additional insured endorsement. This endorsement provides:
WHO IS AN INSURED is amended to include as an insured any person or organization for whom you are performing operations if you and such person or organization have agreed in a contract or agreement that such person or organization be added as an additional insured on your policy. Such person or organization is an additional insured only with respect to liability arising out of your ongoing operations performed for that insured.
(Emphasis added.)
In February 1997, a Decorative Concepts employee was allegedly injured when he slipped and fell on an icy sidewalk while on his way from his work area to a coffee truck parked on the site’s lot. The employee and his wife thereafter brought suit against Pro Con, claiming that Pro Con negligently failed to keep the sidewalk clear of snow and ice. Pro Con requested indemnification under the policy issued by Acadia. Acadia denied Pro Con’s request for coverage, asserting that the circumstances giving rise to the employee’s claim do not trigger coverage under the additional insured endorsement. Pro Con then filed this petition for declaratory judgment in superior court seeking a determination of coverage. See RSA 491:22 (1997).
*472Acadia and Pro Con filed cross-motions for summary judgment. After a hearing, the superior court ruled that the language providing coverage for liability arising out of Decorative Concepts’ “'ongoing operations’ reasonably informed Pro Con that the policy would cover a Decorative Concepts employee injured during an on-site break from his assigned task.” Therefore, the superior court granted Pro Con’s motion for summary judgment and denied Acadia’s motion for summary judgment. This appeal followed.
On appeal, Acadia argues the superior court erred in ruling that the policy provided coverage to Pro Con as an additional insured in this case. Because the parties do not dispute any material facts, we need only determine whether Pro Con was entitled to judgment as a matter of law. N.E. Tel. & Tel. Co. v. City of Rochester, 144 N.H. 118, 120 (1999). We review the superior court’s application of law to the facts de novo. Id.
Our analysis begins with an examination of the insurance policy language. The interpretation of insurance policy language, like any contract language, is an issue of law for the court to decide. Allstate Ins. Co. v. Armstrong, 144 N.H. 170, 172 (1999). We look to the plain and ordinary meaning of the policy’s words in context, Concord Gen. Mut. Ins. Co. v. Mitchell, 138 N.H. 229, 231 (1994), “and we construe the terms of the policy as would a reasonable person in the position of the insured based on more than a casual reading of the policy as a whole,” Deyette v. Liberty Mut. Ins. Co., 142 N.H. 560, 561 (1997) (quotation omitted).
The policy language at issue here is the portion of the additional insured endorsement that provides coverage to “an additional insured only with respect to liability arising out of your ongoing operations performed for that insured.” The phrase “arising out of’ has been interpreted as meaning “originating from or growing out of or flowing from.” Allstate Ins. Co. v. Crouch, 140 N.H. 329, 332 (1995) (quotation omitted). Thus, to warrant coverage arising out of Decorative Concepts’ ongoing operations performed for Pro Con, the ongoing operations need not have been the proximate cause of the injuries but the causal connection between the two must be more than tenuous. See Cannon v. Maine Bonding & Cas. Co., 138 N.H. 365, 366 (1994). This means some causal nexus must link Decorative Concepts’ ongoing operations and the injuries before coverage under the additional insured endorsement is triggered. While the causal connection need not be “proximate” as that term is used in the more demanding evidentiary area of tort law, the causal connection must still exist. See Akerley v. Hartford Ins. Group, 136 N.H. 433, 439-40 (1992). Acadia contends that in this case the only connection between the injuries and Decorative Concepts’ ongoing operations is the fact that the injured *473person was a Decorative Concepts employee. This connection, Acadia asserts, is too tenuous to warrant coverage.
Decorative Concepts’ ongoing operations consisted of interior painting. The injuries did not occur while the employee was engaged in any task related to Decorative Concepts’ painting operations, cf. Merchants Ins. Co. of New Hampshire, Inc. v. USF&G, 143 F.3d 5, 9 (1st Cir. 1998) (concluding coverage warranted when subcontractor’s employee injured while performing task assigned to subcontractor), or near Decorative Concepts’ painting operations. Therefore, no nexus exists between the painting operations and the injuries, and thus the required causal connection between the injuries and Decorative Concepts’ painting operations does not exist.
Pro Con contends that the policy language can be reasonably interpreted to include all claims that would not have arisen “but for” the employee’s presence on the general contractor’s premises. See, e.g., Shell Oil Co. v. AC & S, Inc., 649 N.E.2d 946, 951-52 (Ill. App. Ct. 1995) (concluding injuries “arose out of’ subcontractor’s work when employee injured while walking from work-site to work-trailer because “[t]he injuries would not have occurred ‘but for’ [the plaintiffs] employment by [the subcontractor] and [the subcontractor’s] presence on the [general contractor’s] premises”). This interpretation, however, is inconsistent with our longstanding interpretation of the phrase “arising out of.” See, e.g., Union Mut. Fire Ins. Co. v. King, 113 N.H. 39, 41 (1973) (interpreting “arising out of’ to require less than proximate cause, but more than a tenuous causal connection); Akerley, 136 N.H. at 439 (same). Thus, a reasonable person in Pro Con’s position would not expect coverage for all claims that would not have arisen “but for” a subcontractor’s employee’s presence on the general contractor’s premises.
Because no causal connection between the injuries in this case and Decorative Concepts’ painting operations exists, we reverse the trial court’s grant of summary judgment in favor of Pro Con.
Reversed and remand,ed.
Brock, C.J., and Broderick, J., sat for oral argument but did not take part in the final vote; ÜALIANIS, J., concurred; NADEAU, J., dissented.