Standard Test Method for Determining the Fire Resistance of Continuity Head-of-Wall Joint Systems Installed Between Rated Wall Assemblies and Nonrated Horizontal Assemblies

Importancia y uso:

5.1 This test method evaluates the following under the specified test conditions:

5.1.1 The ability of a test specimen to undergo movement without reducing its fire resistance rating, and

5.1.2 The duration for which a test specimen will contain a fire and retain its integrity during a predetermined fire resistive test exposure.

5.2 This test method provides for the following measurements and evaluations where applicable:

5.2.1 Ability of the test specimen to movement cycle.

5.2.2 Ability of the test specimen to prohibit the passage of flames and hot gases.

5.2.3 Transmission of heat through the test specimen.

5.2.4 Ability of the test specimen to resist the passage of water during a hose stream test.

5.3 This test method does not provide the following:

5.3.1 Any information about the rated wall assembly because its performance has already been determined.

5.3.2 Evaluation of the degree by which the test specimen contributes to the fire hazard by generation of smoke, toxic gases, or other products of combustion.

5.3.3 Measurement of the degree of control or limitation of the passage of smoke or products of combustion through the test specimen.

5.3.4 Measurement of flame spread over the surface of the test specimen.

Note 3: The information in 5.3.1 – 5.3.4 may be determined by other suitable fire resistive test methods. For example, 5.3.4 may be determined by Test Method E84.

5.4 In this procedure, the test specimens are subjected to one or more specific tests under laboratory conditions. When different test conditions are substituted or the end-use conditions are changed, it is not always possible by, or from, this test method to predict changes to the characteristics measured. Therefore, the results are valid only for the exposure conditions described in this test method.

Subcomité:

E05.11

Referida por:

E3038-22A, E0176-24, E2226-23A, E3157-23, E2750-23

Volúmen:

04.07

Número ICS:

13.220.50 (Fire-resistance of building materials and elements), 91.060.10 (Walls. Partitions. Facades)

Palabras clave:

construction gap; continuity head-of-wall system; control joint; cycling; expansion joint; fire; fire resistance; fire resistive joint systems; fire separating elements; gaps; hose stream; joint; linear openings; movement; recess; separation; void;