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What is the maximum thickness allowed for foam shapes to achieve architectural treatments such as accent bands and cornices?

April 26, 2017accent achieve allowed architectural bands foam maximum shapes thickness treatments

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What is the maximum thickness allowed for foam shapes to achieve architectural treatments such as accent bands and cornices?

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The national model building codes generally limit foam thickness to a 4-inch maximum. However, precedence exists for using thicker expanded polystyrene foam insulation when acceptable to local authorities having jurisdiction.