Living & working with Passive Fire Protection.

Passive fire protection: containment, areas of refuge, egress corridors, operating room, stairs, elevator lobbies and nursing suites. The endless stories of our local skyscrapers, are all required to have a 3rd party independent firestop inspector verify and record the materials and listed firestop systems used to seal off smoke and flames from penetrating and escaping these fire resistant rated areas. Please feel free to read and familiarize yourself with the components of a Risk Category III & IV building’s passive fire protection systems.

Conduit bank “through penetration” firestop system.

Conduit bank “through penetration” firestop system.

“General Maintenance” Through- penetrations.

“General Maintenance” Through- penetrations.

General Construction details. With “ listed ” materials.

General Construction details. With “listed” materials.

“Listed Firestop system

A Listed Firestop System is a manufacture engineered product or combination of products for a particular application, (through-penetration, membrane penetration, fire-resistive construction joints, perimeter joints) tested by an independent testing laboratory, such as Underwriter Laboratory (UL) or Omega Point Laboratories, Inc. (OPL)/Intertek . These tests are in accordance with specific ASTM Standards. A Listed Firestop System provides a tested outcome and expectation of performance of multiple materials working together to provide a seal at a penetration of a fire rated assembly. Click on some examples of testing requirements ESFP has on reference when verifying construction materials used:


Continue reading to see what over 260 Listed Firestop Systems help create and maintain.

Penetrations: Through Penetrations and MEMBRANE PENETRATIONS.

Penetrations in rated construction are caused by everything we need and use to accomplish daily business and healthcare activities. Pipes, ducts, conduit, steam pipes, low-voltage wires, electrical outlets, switches, etc. all create penetrations. While, it is unaware to us, these penetrations drastically reduce the effectiveness of the passive fire protection if the rating is not restored after penetration. The two penetrations seen everyday are:

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“Putty pads” are used to provide the continued code required fire resistance within this future fire-resistant rated wall.

“Putty pads” are used to provide the continued code required fire resistance within this future fire-resistant rated wall.

  1. Through Penetration — A breach in both sides of a fire-resistance-rated floor-ceiling, roof-ceiling or wall assembly to accommodate an item passing through the assembly.

  2. Membrane Penetration — A breach in one side of a fire-resistance-rated floor-ceiling, roof-ceiling or wall assembly to accommodate an item installed into or passing through the breach.

What the healthcare and high-rise passive fire protection “through-penetrations”, should not look like.

“Joint System” detail.

“Joint System” detail.

fire-resistance rated construction joint systems

Joints in a multistory hospitals or high-rises are provided with specific construction expectations and requirements. Joints Systems provide protection consisting of adjacent wall and/or floor assemblies and the materials designed to prevent the spread of fire through a linear opening between the wall and/or floor assemblies”. Joint Systems:

Click to see examples of ASTM E1966/UL 2079 conditions used to test manufacturer products requesting to be “UL listed” for application in jointed systems.

ESFP verifies that these products are used and correctly installed during our 3rd party inspection.

fire-resistance rated construction PERIMETER Fire Barriers & curtain walls.

As the world continues to place it’s healthcare, businesses, and families into high-rises the “perimeter fire/smoke barriers” and “curtain walls” constructed as the stories rise into the air are required to have protection. At ESFP the 3rd party inspector and Fire Prevention Consultant inspects perimeter fire/smoke barriers with the understanding that, “these systems are particularly important”, because they prevent a phenomenon called “leap-frog”. Fire barriers & curtain walls are hardly seen by the public because they are installed many phases before building occupancy. If construction is “new” get the systems inspected. If the construction is a “Tenant Improvement” impacting fire/smoke barriers or curtain walls get the systems inspected.