2 questions about SilveRboard xs graphite as cathedral vent… Can I perforate more on my own? Leave edges leaky?

Excuse my other thread on cathedral ventilations, I’ve decided to move forward with using SilveRboard XS graphite on this job and have two quick questions related specifically to this SilveRboard… Excuse my other thread on cathedral ventilations, I’ve decided to move forward with using SilveRboard XS graphite on this job and have two quick questions related specifically to this SilveRboard…Read MoreGreenBuildingAdvisor