Vents

How to reduce the vulnerability of attic and crawl spaces

• Avoid storing combustible items (e.g., cardboard boxes, newspapers and magazines) near attic or crawl space vents. 
• Inspect vents to make sure they are in good condition (i.e., screen is in good condition with no tears that would result in larger openings). 
• If ¼-inch mesh screening is present, replace or add, at a minimum, a ⅛-inch noncombustible corrosion resistant metal mesh screen.
• Consider replacing vents with a flame- and ember-resistant option.