The roofer also mentioned there was some fungus/mildew expanding in the attic (white spots on a few of the roof joists), which was a sign of very poor air flow while in the attic. When I re-roof, need to I go with the plywood as opposed to OSB? Really should https://roofingcontractorsinottaw03579.blog2news.com/32328353/the-5-second-trick-for-best-deal-roofing-ottawa