Proposed standard test method for surface flammability of combustible cladding and exterior wall assemblies using vertical channel test apparatus, TR16 (2005)
- Valid from
- Information provider
- BRANZ Limited
- Information type
- Technical recommendation
This Technical Recommendation has been prepared following the recommendations contained in the report of Fire Code Reform Centre (FCRC) Project 2b-2 that the vertical channel test apparatus be accepted for regulatory control of the flammability of combustible cladding systems and exterior wall assemblies. This Technical Recommendation has been developed from the Draft ASTM Test Standard E5.22.07 and the finding s of BRANZ Study Report 137.
The specifications for the vertical channel test apparatus are detailed, together with requirements for the preparation and installation of the test specimen. This document contains the requirements for calibration of the test apparatus, the operation of the test procedure and reporting of test results. Performance criteria are given for the determination of acceptable performance.
The test determines the comparative burning characteristics of combustible cladding and exterior wall assemblies by evaluating the following:
- flame spread over the exterior surface;
- heat flux to the exterior surface as a result of burning of the exterior wall assembly; and
- fire spread within the test specimen.
The method tests full-scale specimens including the construction and joint details.