CAN/ULC-S134 STANDARD METHOD OF FIRE TEST OF EXTERIOR WALL ASSEMBLIES

1. SCOPE

1.1 This test method enables an assessment of the fire spread characteristics of non-load bearing exterior wall assemblies.
1.2 The test determines the comparative burning characteristics of exterior wall assemblies by evaluating the following:
A Fire spread over the exterior surface;
B Heat flow from the fire plume to the exterior surface; and
C Fire spread within the test specimen.
1.3 This test method does not assess:
A The fire performance of framing details or treatments of windows, doors or other openings that may be used in combination with the test specimen;
and
B The fire performance of the test specimen when exposed to the effects of an interior fire migrating through an exterior wall assembly.

2. SIGNIFICANCE

2.1 This method evaluates the performance of a non-load bearing exterior wall assembly under controlled conditions representing the fire exposure resulting from a post
flashover fire in a compartment venting through an opening in the wall. The results may not reflect the actual performance of exterior wall assemblies under all fire exposure conditions.