Our best plastic slant-back roof louver with built-in screen is an excellent choice to help protect against weather infiltration, especially in steep-slope applications. It's manufactured with UV-resistant polymer and a snap-in hood to help ensure lasting performance on the roof. Its extra-large flashing is pre-punched nail holes for reduced chance of leaks and easy installation. Available in four popular colors, it provides a large 65 sq. in. (41,935 mm2
) of NFA to help exhaust heat and moisture from your attic.