What can occur if end-closures are not installed on a concrete tile roof?

When end-closures are not installed on a concrete tile roof, one of the significant consequences is that snow and water can infiltrate the roof space. This gap allows moisture to enter, which can lead to a range of issues, such as water damage to the underlying roofing structure, mold growth, and potential damage to the interior of the building. Properly installed end-closures help to seal the roof and prevent these environmental elements from causing harm. Consequently, without these closures, the roofing system becomes vulnerable to leaks and water-related issues, which can compromise both the roof's structural integrity and the living environment beneath it.