What UL 1479?
The UL 1479 tests required by Underwriters Laboratories determine the ability of a firestop system to stop the spread of fire, smoke, and water through a fire-rated barrier in the event of a fire and for how long a period of time.
What is ASTM E814?
ASTM E814 — Fire Tests of Penetration Firestop Systems They detect and send an alert when there is a fire, and they are used in the openings of fire-resistant floors and walls. ASTM E814 is a test that evaluates a firestop under fire conditions to determine if it will gain the firestop status.
What is UL firestop?
The UL Qualified Firestop Contractor Program is voluntary and allows contractors to proactively demonstrate their commitment to the proper installation of firestop systems.
What is F and T rating?
F & T Ratings A two-hour F rating means the firestop system prevented fire spread for two hours. The T rating is a measure of the thermal conductivity of a firestop system. This is the time required for various points on the unexposed side of the test assembly to rise 163°C over the starting ambient temperature.
What UL 263?
ANSI/UL 263 – the default Standard for North America ANSI/UL 263, the Standard for Safety of Fire Tests of Building Construction Materials, and ASTM E119, Standard Test Methods for Fire Tests of Building Construction and Materials, were developed to simulate a building fire.
What is an L rating?
L-rating, Smoke Ratings The L-rating is the amount of air (or cold smoke) that can leak through a penetration and the number indicates the amount of air in cubic feet per minute. L-ratings are tested with a differential pressure of 0.30 inches water column (75 Pa) at 75 oF and at 400 oF.
What is fire caulking?
Fire caulking, otherwise referred to as fire-stop products, involves sealing joints, seams and other openings to ensure optimal fire safety for buildings. It is required by many local building codes as well as state and federal laws.
What is a UL system?
The University of Louisiana System is one of the largest higher education systems in the country. The University of Louisiana System is a public, multi-campus university system dedicated to the service of Louisiana and its people.
What is the T rating?
the T Rating is often disregarded or overlooked. By definition it is a measure of the time it takes for any thermocouple on the unexposed side (the side of the assembly away from the fire) to reach a temperature 325°F above the temperature of this thermocouple prior to the start of the test.
What is a W rating?
What is a W-rating? A W-rated sealant is one that, after fully curing, has been tested under 3 feet of water pressure. It must remain submerged for 72 hours without leaking to receive the rating.
What is ASTM E119 or UL 263?
ASTM E119 (UL 263): tests the fire resistance of an assembly. This test evaluates the duration for which building construction materials and assemblies can either contain a fire, retain structural integrity, or both.
What are UL 1479 and ASTM E814 firestop standards?
Building codes require the use of firestop systems tested and approved under the UL 1479 standard, Fire Tests of Through-Penetration Firestops. Alternately, firestop products may be tested in other laboratories using almost identical standards labeled ASTM E814, Standard Test Method for Fire Tests of Penetration Firestop Systems.
What is ul 1479?
UL 1479 exposes the test specimen to a standardized time-temperature curve, which assures all systems are tested to the same rigorous requirements in order to provide a benchmark.
ASTM E814 ASTM E814 addresses those key realities around building construction where firestop systems are necessary to contain the fire from spreading from one area to another around penetrating items. In the absence of mitigating systems and products, a structure will be relatively quick to burn.
What are the UL standards for through-penetration firestops?
UL 1479 Standard for Fire Tests of Through-Penetration Firestops. Click the link for an interesting look at UL standards for testing various through-penetration firestops designed for use in breaches in firewalls or floor-ceiling assemblies, or both. Standard for Fire Tests of Through-Penetration Firestops.
