Rain Screen Needed for Vertical Metal Siding?

Hello All!  I’ve read through many posts about metal siding and the need for a rain screen product (like Cor-A-Vent or whatever) or not.  One post indicated that code in… Hello All!  I’ve read through many posts about metal siding and the need for a rain screen product (like Cor-A-Vent or whatever) or not.  One post indicated that code in…Read MoreGreenBuildingAdvisor