Looking for any input here, hopefully someone with experience working with this product, does it produce adequate air flow intake to attic?
I have 2 layer shingled 2,500 sq ft of roof over my ranch that needs to be redone. Had 3 contractors come out to estimate, and only the last one pointed out that there is not intake on the back of the house, and the soffits on the front are blocked by plywood for who knows what reason. I currently have two gable vents, but every contractor told me they would add a ridge vent. Only this last guy said I needed proper intake ventilation, and could do so with the Cobra Intake Pro. Didn’t see a lot of information online except what had been written by GAF themselves. I found some reviews on Home Depot but pretty scatter shot and not instilling confidence. House was built in 1981, coastal NJ.