This video has dryer vents as well as plumbing and electrical vents. If you want more information on the snips I use you can find it here.
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By: Kuenzer Homesteading
Title: how to install vents in metal roofs
Sourced From: www.youtube.com/watch?v=ggjQ1-8dspE
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Did you miss our previous article...
https://besthawaiiroofer.com/metal-roofing/installing-metal-roof-with-special-guest