Best Practices for Ensuring Correct Roof Air Flow Ensuring appropriate roof ventilation is important for the durability and performance of a roof. A well balanced intake and exhaust air vent proportion, generally 1:300, plays an essential role, with intake vents preferably placed at the lower edge of the roof covering https://commercial-roofing-contra77755.wikilowdown.com/6366975/necessary_inquiries_to_ask_gainesville_roofing_companies_before_employing