scope:

This standard describes a method for determining the heat release rate from below the deck of roofing assemblies that have combustible above-deck roofing components when the assemblies are exposed to a fire from below the roof deck. 

The performance of the above-deck roofing assembly is evaluated by determining the heat release rate below the deck of the roof test specimen. 

This test method is based on the substitution method for measuring the heat release rate by using an auxiliary fuel (propane) to provide the surrogate heat release rate. 

Purpose. 

Test Method.

Two fire tests are conducted to determine the heat release rate of the test specimen as follows:

(1) Fire exposure test

(2) Evaluation test with auxiliary fuel 

Each fire test is 30 minutes in duration.