The roofer also mentioned there was some fungus/mildew rising from the attic (white places on some of the roof joists), which was a sign of inadequate ventilation in the attic. After i re-roof, should really I go Using the plywood versus OSB? Really should I have the quantity of attic https://roofrepairinottawa79146.elbloglibre.com/31709982/the-basic-principles-of-steel-roof