BOAF Interpretations

Interpretation #8039

Original Request

Date: December 12, 2017
Requested By: William R Mac Donald, Technical Director - Celcore Incorporated
Requester E-Mail: wmacdonald@celcoreinc.com
Code Version: 2010
Code: TESTPROT
Code Description:
Chapter: APPEND
Section: Appendix D
Topic: TESTING APPLICATION STANDARD (TAS) 114-95 APPENDIX D TEST PROCEDURE FOR SIMULATED UPLIFT PRESSURE RESISTANCE OF ADHERED ROOFING ASSEMBLIES
Question: In situations where test procedure(s) Appendix B, C or J would be an applicable means for conducting an uplift pressure test upon a roof construction, would it be the intent of the FBC to require their use in-lieu of Appendix D.?

TAS 114, APPENDIX D states:
Scope 1.
1.1 In situations where the uplift pressure test procedure described in Appendix B, C or J is not applicable, especially for liquid/spray applied roof constructions, the following test procedure may be used as an alternate method for evaluation of uplift resistance of the roof construction.

Answer on 12/12/2017 at 3:46 PM

Yes, however in the case of qualifying fully adhered roofing systems to lightweight insulating concrete, two structural substrates are typically used: structural concrete or steel deck with joists. Since the FBC allows the structural elements of a building to be designed (i.e. ACI, SDI, and SJI), use of TAS114 Appendix D to qualify the design pressure rating of a fully adhered membrane to the insulating concrete is allowed.

Commentary:

None

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