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FIRE RATINGS FOR EXTERIOR SIDING IN CLASS I $ 11 ZONES <br />APPROVED MATERIALS <br />Fiber -Cement Siding <br />Hazard Rating: Non-combustible. <br />Vinyl Siding over Fire -Rated Gypsum Board ( UL Listed and approved) <br />Hazard Rating: 1 -Hour Fire Resistance. <br />Aluminum Siding over Fire -Rated Gypsum Board. ( UL Listed and approved) <br />Hazard Rating: Non-combustible, not rated. <br />t <br />Brick <br />Hazard Rating: 2 -Hour Fire Resistance. <br />Stucco or cement plaster <br />Hazard Rating: 1 -Hour Fire Resistance (1 -inch thickness). <br />Concrete Block <br />s Hazard Rating: 2 -Hour Fire Resistance. <br />Heavy Timber or Log <br />Construction <br />;� Hazard <br />Rating: <br />1 -Hour Fire Resistance. <br />Alternative materials will <br />be considered <br />individually based on ICC Evaluation Reports, <br />UL Testing <br />Reports, Material Safety <br />Data Sheet (MSDS) information, and other <br />documentation <br />provided <br />by a third <br />party testing agency. Documentation from <br />manufacturers <br />only will not be approved <br />for use. <br />PROHIBITED MATERIALS <br />1. Wood Siding- Traditional solid wood siding. <br />2. Hardboard Siding- Multi -fiber or pressed wood type siding. <br />3. Engineered Wood Siding- Plywood panel siding. <br />4. Paints, Coatings, and Other Fire Retardant Treatments. <br />Revised plans must include approved UL -listed exterior wall assembly <br />construction details. <br />3 <br />