Through Penetration
Through Penetration : An opening in an assembly which may or may not be required to have a fire-resistance rating, which is traversed by a penetrant. A through penetration may or may not be firestopped. A through penetration seal is a through penetration, complete with seal, which provides a fire protection rating (thus a firestop) or a product, material or system, which may not provide a fire protection rating, in which case neither the seal, nor the surrounding wall or floor assembly can be considered fire resistive
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