To provide a fire compartment penetration part measure tool capable of being easily applied and reapplied.

This measure tool is obtained by attaching a hook side 2a of a face fastener 2 to one face of a roller or sheet-shaped thermal expansion member 1, a loop side 2b is attached to the other face, and the measure tool is wound on a pipe 3 once or twice, and fixed by the face fastener 2. Whereby the measure can be easily taken, and further the part fixed by the face fastener 2 can be once separated to be reapplied in a case of the failure in application.