ROOFERS OTTAWA ONTARIO SECRETS

The roofer also mentioned there was some fungus/mildew increasing while in the attic (white spots on many of the roof joists), which was a sign of bad ventilation inside the attic. When I re-roof, ought to I go With all the plywood vs . OSB? Should I've the quantity of attic vents enhanced?Motivation to Community: We have confidence in supplying ag