2.7.1. NON-CORROSIVE MESH 2.7.1.1. Size: Approx. 36” x 50’ per roll 2.7.1.2. Dimensions: ≤ 1/8” (3mm) mesh with corrosion-resistant coating 2.7.1.3. Must be stainless steel, aluminum, or equivalent high-durability metal (no galvanized steel or low-grade metals) 2.7.1.4. Intended use for vent retrofits where full vent replacement is not possible 2.7.2. DRYER VENT 2.7.2.1. Dimension: 4” 2.7.2.2. Must be ember- and flame-resistant, with back-draft damper or equivalent design to prevent ember intrusion 2.7.2.3. Replace vents that are not compliant with fire code regulations 2.7.3. FOUNDATION VENT 2.7.3.1. Dimension: Approximately 6.5” x 1.5” 2.7.3.2. Must meet CBC Ch. 7A ember resistance and corrosion resistance standards 2.7.4. GABLE VENTS 2.7.4.1. Dimensions 2.7.4.1.1. 10” x 18” 2.7.4.1.2. 12” x 12” 2.7.4.1.3. 12” x 24” 2.7.4.1.4. 15” x 21” 2.7.4.1.5. 18” x 24” 2.7.4.1.6. 24” x 24” 2.7.4.2. All gable vents must be ember- and flame-resistant, tested to ASTM E2886/E2886M, and manufactured from non-combustible, corrosion-resistant metals 2.7.5. OFF RIDGE VENTS 2.7.5.1. Retrofit Kit Style – High Profile “S” Style Vent 2.7.5.2. Retrofit Kit Style – Climate Resistant Kit for Low Profile Shingle Vent 2.7.5.3. Must be third-party tested and proof to be provided for resistant ember intrusion and flame penetration under wind-driven conditions. 2.7.6. ANCILLARY MATERIALS 2.7.6.1. Fasteners – stainless steel or coated to resist corrosion 2.7.6.2. Flashing – non-combustible, corrosion-resistant 2.7.6.3. Sealants – fire-rated, UV- and weather-resistant
