Firestop apparatus for allowing pipe movement

A penetration firestop that permits both longitudinal and radial movement of a pipe through an opening in a partition where the opening has a cross-sectional area larger than a cross-sectional area of the pipe, said penetration firestop comprising:

• (a) a thermal insulator with a cross-sectional area dimensioned to be larger than the opening and adapted to substantially surround the pipe;
• (b) a first seal adapted to be interposed between said insulator and the pipe, said first seal adapted to permit longitudinal movement of the pipe through said insulator;
• (c) a second seal adapted to be interposed between said insulator and the partition, said second seal adapted to permit radial movement of the pipe and said insulator relative to the opening;
• and
• (d) securing means for allowing radial movement and for restricting longitudinal movement of said insulator relative to the opening so that the opening remains substantially covered.

A method for sealing a pipe that extends through an opening in a partition, to minimize the migration of fire or smoke from one side of the partition to another, comprising the steps of:

• a) attaching a thermal insulator with a cross-sectional area larger than the opening to the pipe proximate the opening;
• b) interposing a first seal between the thermal insulator and the pipe, the first seal permitting longitudinal movement of the pipe through the thermal insulator;
• c) interposing a second seal between the thermal insulator and the partition, the second seal permitting radial movement of the pipe and thermal insulator relative to the opening;
• and
• d) securing the thermal insulator to the partition to restricting longitudinal movement while allowing radial movement of the thermal insulator relative to the opening so that the opening remains substantially covered.