Thanks everyone. I essentially got the same advice RooferR gave from my local ventilation contractor; get up in the attic with a leaf blower every so often and blow out the needles from the inside. I’ll be going with the rigid vents. Thanks! copy; 2009 - 2023 all rights reserved. Editorrsquo;s Notes: This two-story house previously had individual roof louvers for exhaust ventilation without any intake ventilation (the house does not have an overhang/soffit). Elite Exteriors balanced the attic ventilation system by replacing the roof louvers with Air Ventrsquo;s ShingleVentreg; II ridge vent for exhaust and added The Edge Vent for intake. Me again. To be more specific, I’m referring to Owens Corning VentSure Rigid Roll. It seems like my contractor is a) more familiar with installing this then the rigid Snow Country vents and b) it may be less susceptible to clogging with pine needles. But if it doesn’t draft correctly then maybe I should just go with the Snow Country and send someone up to clean it once a year?