As you can see I have added arrows in the photos that point to areas where water can easily get under the metal and into the roof.

This is an area that is notorious for leaking. Where the roof butts up to the chimney. During heavy downpours, the water can back up in this small area and backflow under the metal. This usually will only happen during very heavy rain. As you can see somebody has already used a Clear Sealant along some of the edges but it’s beginning to crack due to age or a Cheap product.

I’m these pictures I have put arrows and short descriptions as well. There are many areas where water could make it under the metal.