CedAir roof ventilation mat under standing seam roof?

I am building the style of roof shown in the attached photo. Except, I’m using Corten standing seam roofing instead of shingles. I’m also using Sharkskin Ultra SA as both… I am building the style of roof shown in the attached photo. Except, I’m using Corten standing seam roofing instead of shingles. I’m also using Sharkskin Ultra SA as both…Read MoreGreenBuildingAdvisor