Flashing and roof steel interset help

Aaron Smith
12/1/2009
I am installing a porch on a house for my uncle that he has had built by a contractor. They screwed up his house and roof,and now he is out of time.So the rest of the family and I are finnishing it in time for christmas for him.I have to fix a roof and flashing intersection.Plus install the new porch.The problem is the roof steel runs down to a vertical wall at a 30 degree angle.We are using Fabral pro rib(pole barn metal).I have built a few barns ,but I have never run into the issue of how the roof steel channels run down into a wall. I understandto run flashing up the wall,and under the steel.What i don't understand is how I run the flashing out onto the roof sheets that make the full run from peak to eave.DO i slit the that sheet and try to slip the flashing into the slot?I will try and post some pics.My son took some ,but not real sure how well they will show.
Aaron Smith
12/1/2009
this is a bad pic ,but the only one I have of the porch roof and were the verticl wall meet.I also have the same issue on the garage roof were it meets the house.The contractor install the flashing right on top the the roof steel.So when it rains the water runs down the roof under the flashing and right down the wall of the inside of the garage.
Aaron Smith
12/1/2009
If you look at the garage roof here in this pic you can see what I am talking about.the roof steel run down to the wall at an angle because of the orientation of the house.The flashing from the house wall to roof is ontop of the sheet steel.So water runs down under it and into the garage.How is the correct way to fix it?I have the same issue on te porch roof i have to put up next weekend.I think i should flash under the steel,butyl tape the sheet to the flashing,and install foam where the large rib is to keep water from going back up.I am not sure how to deal with the flashing where it will come out past the wall onto the rest of the roof. I hope I haven't totally messed you guys up with my explanation.If i can give anymore details please let me know
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