The V-300® ridge vent is Cor-A-Vent's most popular ridge vent for a variety of reasons from ease of installation, to its low profile and power-nailability, the V-300 provides the best value for a ridge vent on the market today. It works equally well under shingles as well as shakes or slate roofing. If you are looking for a low profile ridge vent that still provides plenty of ventilation, our V-300 product line is your answer.