Fire Rated Wall Penetration

Fire Rated Wall Penetration
UL Solutions has developed this guide for use by code officials, inspection authorities, architects, contractors, installers, and other interested parties. It is intended to provide an overview of code compliance methods and best practices for protecting various types penetrations in fire resistance-rated assemblies, in association with the applicable model building, fire and life-safety code ...
714.4.1.2 Through-penetration firestop system Through penetrations shall be protected by an approved penetration firestop system installed as tested in accordance with ASTM E814 or UL 1479, with a minimum positive pressure differential of 0.01 inch (2.49 Pa) of water and shall have an F rating of not less than the required fire-resistance rating of the wall penetrated.
A through-penetration firestop system is a specific field-erected construction of an assemblage of materials designed to prevent the spread of fire and its byproducts for a prescribed period of time through openings which are made in floors and walls to accommodate through penetrating items such as ducts, metal and plastic pipes, electrical ...
ARE INTENDED FOR USE AS PRODUCT REFERENCE MATERIAL BY ARCHITECTS, ENGINEERS, OTHER DESIGN PROFESSIONALS, CONTRACTORS, BUILDING CODE OFFICIALS, OR OTHER COMPETENT CONSTRUCTION INDUSTRY TRADE PROFESSIONALS HAVING AN INTEREST IN THE SELECTION, SPECIFICATION AND USE OF PRODUCTS MANUFACTURED BY THE SUBSIDIARIES OF USG CORPORATION. THE DRAWINGS ARE INTENDED SOLELY AS TECHNICAL SUPPORT INCIDENT TO ...
Wall Assemblies USG provides resources here for our UL wall assemblies for seamless integration into any construction project. These wall assembly files are used for planning and estimation purposes for many UL wall types, such as fire-rated wall assemblies.
312.7 Piping penetrations of fire-resistance-rated walls, partitions, floors, floor/ceiling assemblies, roof/ceiling assemblies, or shaft enclosures shall be protected in accordance with the requirements of the building code and Chapter 14, "Firestop Protection".
Prevent smoke, flame and gas from traveling through walls via openings around pipes with 3M putty, foam, sealant, and other through penetration products.
Firefighters must be familiar enough with penetrations of fire-rated walls and floor-ceiling assemblies that they can recognize one that may be deficient, Greg Havel writes.
Illinois Building Code 2021 > 7 Fire and Smoke Protection Features > 714 Penetrations > 714.4 Fire-Resistance-Rated Walls Go To Full Code Chapter
Tremco offers a range of fire resistive joint systems and products for sealing fire-rated wall penetrations. For the most up-to-date listings of our US and Canadian Firestop Systems, refer to the UL webpages linked below.
Dec 28, 2025
Use these instructions to create your UL Product iQ account and search the certification database for UL fire-rated assemblies, designs or systems.
The EZ Path® Series 84+ Fire-Rated Pathway is a pathway device designed to support high-capacity cable runs through fire-rated walls without the need for firestopping.
5 days ago
As outlined in the definition, a through-penetration firestop system comprises three elements: a fire-rated assembly, be it a wall or a floor; a penetrating item, such as a sprinkler pipe; and the firestop material (s).
We offer fire barrier products that include through-penetrations, construction joints, mats, and wraps. With in-person and e-training courses, our system selector tool, and a dedicated team of experts on call, you're never alone when using 3M™ fire barrier products.
ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures.
ICC Digital Codes is the largest provider of model codes, custom codes and standards used worldwide to construct safe, sustainable, affordable and resilient structures.
2 days ago
The correct installation of service penetrations through fire rated and smoke-proof walls, floors and ceilings is vital for occupant safety. There can be significant consequences of incorrect installation of penetrations, such as injury or loss of life.
This document details the importance of fire walls, and the hazards associated with fire wall poke-throughs and unenclosed stairwells.
These "fire-compartments" are divided by fire-rated walls with insulated piping systems, usually HVAC supply and return pipes, running through them. Through-penetration fire-stop systems are therefore put in place to keep the resistance of a fire-rated wall which will help to contain a fire in case of emergency.
Guide for Protection of Recessed Boxes in Fire-rated Walls Using Firestop Putty Pads, Box Inserts, Cover Plate Gaskets and Endothermic Mats By John Valiulis, IFC Technical Director penetration that affects only one side of a rated wall is Note: All code article numbers reference 2018 IBC.
Material: The material used for the fire-stopping of service penetrations must be concrete, high-temperature mineral fibre, high-temperature ceramic fibre or other material that does not flow at a temperature below 1120°C when tested in accordance with ISO 540, and must have—
Penetrations in Fire-Resistance-Rated Walls: Penetration firestopping systems with ratings determined per ASTM E814 or UL 1479, based on testing at a positive pressure differential of .01-inch wg.
Learn about what to look for in fire-rated wall assemblies in Gregory Havel's first column addressing building construction issues that affect firefighters.
The National Fire Protection Association (NFPA) requires that penetrations for cables, cable trays, conduits, pipes, tubes, combustion vents and exhaust vents, wires, and similar items to accommodate electrical, mechanical, plumbing, and communications systems that pass through a wall, floor, or floor/ceiling assembly constructed as a fire ...
Focus on protecting electrical boxes Fire-resistance rated wall assemblies are relied upon to help provide safety to life and property from fire, products of combustion, and similar hazards. In order to provide the anticipated hourly fire resistance rating these assemblies must be constructed and maintained in accordance with their design criteria (e.g. as shown in the UL design specifications ...
Modern buildings are full of various services that travel through multiple rooms within a building. Electric cabling and plumbing pipes are few of the items that pass through walls as they travel through a building. When a service passes through a rated wall, penetration firestop systems are installed to ensure the wall's fire rating is ...
Through-Penetrations A through-penetration is one in which an item passes completely through the fire-resistance-rated assembly. An example of a through-penetration would be an electrical conduit that penetrates a fire barrier on one side of the barrier and exits on the other side of the barrier.
May 19, 2025
712.3.1 Through penetrations. Through penetrations of fire-resistance-rated walls shall comply with Section 712.3.1.1 or 712.3.1.2. Exception: Where the penetrating items are steel, ferrous or copper pipes, tubes or conduits, the annular space between the penetrating item and the fire-resistance-rated wall is permitted to be protected as follows:
Penetrations in Fire Rated Walls and other construction elements What is the hazard? Open penetrations in fire rated walls are a common hazard found in most occupancies. Despite their often insignificant appearance, there is the potential risk of fire and smoke spreading through the penetration, from one fire section to the next.
Focus on protecting electrical boxes Fire-resistance rated wall assemblies are relied upon to help provide safety to life and property from fire, products of combustion, and similar hazards. In order to provide the anticipated hourly fire resistance rating these assemblies must be constructed and maintained in accordance with their design criteria (e.g. as shown in the UL design specifications ...
A building's utilities--including heating, ventilation, air conditioning, electrical, plumbing, fire protection, data, and communications--rarely originate and terminate in the same fire-rated compartment; but usually pass from compartment to compartment, penetrating both rated and non-rated partitions and floor-ceiling assemblies.
Today
A through-penetration firestop system is an assemblage of specific materials or products designed, tested and rated to resist fire spread for a prescribed period of time through openings made in fire resistance-rated walls, floor/ceiling or roof/ceiling assemblies.
Specify fire-rated penetrations in the design When fire rated penetrations aren't specified in the design, they often become an unfortunate and undesirable afterthought. Walls are constructed and lined, then penetrations need to be formed through them. Alternatively, cable trays, ducts or pipes may have been installed, and walls need to be constructed around them. Building services ...
Compartmentation to limit the spread of fire is created by requiring fire-resistance rated assemblies, such as fire walls, fire barriers, fire partitions, shaft enclosures and horizontal assemblies and properly firestopping those assemblies.
Our fire wall penetration systems will prevent the immediate spread of fire and toxic fumes through multiple rooms while limiting the heat release from the fire. This will serve to protect piping and equipment from fire damage and help safeguard personnel.
1 day ago
Penetrations through fire-resistance-rated wall assemblies including both empty openings and openings that contain penetrations. Membrane penetrations in fire-resistance-rated wall assemblies where items penetrate one side of the barrier. Joints in fire-resistance-rated assemblies that to allow independent movement.
Penetration holes must be protected! Model building codes and National Fire Codes now require that penetration openings in fire walls and/or floors be "firestopped" ensuring the integrity of the fire-rated walls and/or floors. Protective devices and systems are available for sealing penetrations in fire walls and/or floors.
The local fire marshal requires all penetrations be made at a 90 degree angle to the wall. Do you have literature describing an angular wall penetration method?
I have a 1-hr fire rated wall assembly for a corridor that has several light cove details that call for 2x3 exposed wood supports to penetrate the wall assembly in order to attach to the side of the wood stud in the wall assembly. The UL listings provided allow for similar penetrations of metal and plastic piping with fire caulking.
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