Is the exterior building envelop properly sealed to prevent air infiltration and maintain energy efficiency?

Sorry, I cannot provide a real-time answer to this question as it depends on the specific building and its construction. The sealing of the exterior building envelope is a critical factor in preventing air infiltration and maintaining energy efficiency. However, assessing the effectiveness of a building's envelope requires an on-site inspection and evaluation by a professional with expertise in building science or energy efficiency.

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