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What is Firestopping?

Firestopping is the containment of fire or smoke through rated assemblies by the application of tested fire rated assemblies. There are four primary types of openings or joints associated with fire and smoke resistive rated assemblies, to which tested firestopping systems may be applied to prevent the spread of fire, smoke or gases:
  • Joints - Joints between fire rated construction components (e.g. wall/wall, wall/floor, wall/ceiling)

  • Floor Perimeters - Slab edge / exterior wall cavity

  • Penetrations - Openings containing mechanical, electrical, structural, security, communication, piping or wiring

  • Blank Openings - Openings in fire rated assemblies with no penetration items

Company Overview

Founded in 1989, Karcher Firestopping, Inc. has since earned a reputation as the leader in providing specialty-contracting services. Our company provides a full range of firestopping applications including the installation of through penetration protection, head of wall and curtain wall joints, and grease / fume duct containment. Unique to the industry, we also specialize in many forms of architectural caulking, as well as construction and expansion joint installation.


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