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(a) Where an exterior wall is required to have a fire resistance rating and an EIFS is installed, test data shall be provided on the permit plans to substantiate that the code-required fire resistance rating will be achieved. The inclusion of an EIFS over a listed fire-rated assembly shall not be deemed to reduce the tested or listed rating.
(b) Where the EIFS plane faces another building or an interior lot line at a distance of less than 30 feet, test data shall demonstrate that the exterior insulation finish system will not ignite upon exposure to a minimum radiant heat energy of 12.5 kw/m
2
, when tested in accordance with NFPA 268-96, Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source. Where a material is intended to be installed in more than one thickness, tests shall be performed on the intended maximum and minimum thickness.
(Added Coun. J. 5-17-00, p. 32653, § 3)