Replies

1. 
   Malcolm_Taylor | Apr 22, 2023 07:30pm | #1

   5Stud,

   Unlike snap-lock panels where you can bend up the sides or ends to get laps under the flashing, with corrugated you rely on the corrugations to keep water from moving laterally. So most of what is used is simple L-flashings.

   Her is link to the common types of flashing you use: https://www.westform.com/application/files/1516/5426/2040/008-Corrugated-Data-Page-Public.pdf

1. 
   5Stud | Apr 23, 2023 08:30am | #2

   Thanks Malcolm, so no membranes or sealants?

1. 
   Malcolm_Taylor | Apr 23, 2023 12:22pm | #3

   5Stud,

   I run a 12" strip of peel & stick along the intersection of the wall and roof at sidewalls as a secondary layer of protection, but rely entirely on flashings above that.

2. Expert Member
   Akos | Apr 23, 2023 02:39pm | #4

   My method is with rockwool AFB. These are similar to regular batts not stiff like comforboard so you need horizontal 2x3s on edge to support them. They are also 16" wide so the 2x3s need to go on 17.5" OC.

   For roof to wall flashing, I like to run a strip of peel and stick over the roofing underlayment and under the wall WRB.

   The rest is regular metal roof details. Don't forget the kickout flashing at the bottom.

1. 
   5Stud | Apr 23, 2023 03:54pm | #5

   Thanks Akos,

   Just because I can't remember sh!t doesn't mean I wasn't paying attention!
   I have thought about your system and I like it a lot. I will try to post a drawing of me trying to vent it even though I probably don't have to.
   Thanks for the flashing info