Norwesco 18in. x 22in. Galvanized Roof RV49 Ventilator 558012

The Norwesco 558012 18" x 22" Galvanized Roof Ventilator (RV49) is suitable for repairs and home improvement projects. It meets FHA requirements. This home ventilator is weatherproof and has a solid finish. The venturi-type opening aids in pulling out the unwanted hot air and moisture, while cool air stays in. The large base of the attic ventilator makes it simple and quick to install. Additionally, it can be used on shake or composition roofs. The enclosed screen is already fastened to the head, so it is not able to come loose or to fall out. This low-profile unit is fastened together using rivets.

Roof-proofed, weatherproofed roof ventilators features include one-piece base, one-piece top with enclosed back, roll-lock seam collar and specially designed weather baffle, all developed to provide the desired venturi-type opening pulls air out of the attic 8-mesh screen meets FHA requirements Screen is fastened from-head tight over opening, cant come loose or fall out Base plate Galvanized 18" x 22"