Refractory material sheet, penetration structure of building fire compartment, construction method of refractory material

摘要

PROBLEM TO BE SOLVED: To provide a fireproof sheet that is suitable for a case that plural long articles penetrate a boundary of a building fireproof compartment and that facilitates construction.SOLUTION: A fireproof sheet 1 can be wrapped in an outer periphery of a long article aggregate Ca aggregating plural long articles C...C to be adjacent to each other. The fireproof sheet includes: a base 11; and plural deformed pieces 12...12 extending in the fireproof sheet 1 from the base 11 along a width direction crossing a wrapping direction as a direction in wrapping and formed by arranging plural slits 13 extending in the width direction side by side in the wrapping direction. Dimension of the deformed piece 12 in the width direction of the fireproof sheet 1 is larger than dimension in the wrapping direction.SELECTED DRAWING: Figure 4