I need to make my own piece of head flashing (I’m referring to the top piece that wraps around and comes down the sides) for a curb mounted skylight. This is an old size Velux that you can no longer get the factory made flashing kit parts for. The original installer had made cuts in the corners of the head piece (for some onknown reason) then caulked them with an asphalt based caulk which is now failing. I’m assuming the best way to do this is to have a crimped seem which joins the pieces that will wrap around the sides to the top piece, but if someone who’s successfully done this has any suggestions I’d be glad to hear/see them. Alan Manuel
Readers and an expert consider the source of the problem and how to fix it without completely reroofing.
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