A. Editor Don Jackson responds: The fact that the home your company built is the only one in the neighborhood with ice problems is not going to help your reputation as a quality builder. Adding pot vents to the roof is tantamount to heating the outdoors in an effort to cool the can lights.
Since you seem to be able to reach the can lights from an adjoining attic area, you might be able to place a sealed, insulated box around each can, but there's a chance the overheating problem would come back.
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