FlowThru ridge vent provides long-lasting protection that keeps air flowing thru the attic for a healthy home. FlowThru ridge vent ensures air is evenly distributed throughout the attic and at the roof's highest point to prevent hot, moist air pockets to keep a cool and dry attic. Designed without an external baffle keeps ridge vent clog-free from pine straw and leaves. Durable and impact resistant, ridge vent is made of HDPE plastic to withstand hail damage and gun-nailable for fast and easy installation. FlowThru ridge vent is ideal for drier climate regions that do not receive storm-driven rain or significant accumulations of snow fall. Delivers excellent ventilation and a sleek design for a clean, neat and long-lasting roof appearance.