Proper attic ventilation consists of exhaust vents and intake vents. Article: Ventilation Failure... Black Mold.

Are 3-Tab Roofing Shingles For You? Replacing 3-Tab Roofing Shingles. Contacting A Professional a professional roofing contractor

Anyone who has been in an attic knows that attics get hot! If the heat in the attic is allowed to sit there, it will conduct heat into the house, or prevent the heat in the house from leaving.