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I had someone up on my standing-seam metal roof and he noticed that, after it had rained, there was still some water above a skylight with nowhere to go because of the seams (he gave me the pic below). So far for 8 years, it's never been a problem with leaks inside but I don't like the idea of water sitting there looking for an inevitable place to make a new leak.

What is the proper way to fix this, if anything? Should the roofer, who installed the roof at the same time the skylights were installed, have done anything to handle this situation?

enter image description here

DaveBurns
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  1. The top flashing should be below the roof sheeting,
  2. The bottom flashing should be above it,
  3. The side flashings should be below the top flashing and above the bottom flashing.

There is some sort of compromise needed generally this is achived with two-part side flashings. or by overlapping the roof sheeting at the sides.

How to apply this to an already installed roof that cannot be disassembled and reassembled I have no clue.

Given how difficult it is to modify a standing seam roof probably what you'll end up with to fix this is a platform built in the middle trough and flashed over to lift the water over the seams so that it can flow to the sides.

Jasen
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