Vulcan Vents soffit vents use a baffle-free design to encourage air to circulate freely under the roof covering. Has the highest airflow in the industry and helps protect your home from the threat of flying embers and wildfire. Vulcan Vents are ideal for new construction in various materials and retrofit kits are available for existing continuous vents on the home. Corrosion-resistant vents were created with homes that face wildfire threat in mind. An inner noncombustible wire mesh screen protects vent openings from floating ember entry while an intumescent coating expands in the presence of intense heat, further blocking entry of embers and flames. Vulcan soffit vents are available for stucco, wood construction, foam and stucco, fiber cement, or retrofit applications.