a material permitted to be used in non-combustible construction

[sunyaer]

Does the "a material" in the following screenshot refer to any material which is combustible or non-combustible?

 

[Yankee Chronicler]

Yes.

 

[sunyaer]

Yes.

What does sentence (2) intend to require? For combustible materials, does it make sense to comply with the test ?

 

[steveray]

For instance, I do not believe drywall can pass a non-combustibilty test, but it works....

 

[sunyaer]

For instance, I do not believe drywall can pass a non-combustibilty test, but it works....

Some wood elements are permitted in non combustible construction, how does wood pass a non-combustibility test?

 

[Yankee Chronicler]

Some wood elements are permitted in non combustible construction, how does wood pass a non-combustibility test?

By being so limited in quantity that it doesn't offer a significant contribution to the fuel load in a fire. The limited inclusion of wood in non-combustible construction doesn't pretend that the wood isn't combustible, it just says "Don't use too much of it and we'll allow it as decoration."

 

[steveray]

Some wood elements are permitted in non combustible construction, how does wood pass a non-combustibility test?

There are specifics in our IBC Ch. 6 and that is what we use....Not sure where that is in metric code....

 

[tmurray]

3.1.5. is structured to provide the testing requirements as the general rule, but then includes exceptions for other permitted items. It is likely that any of the listed exceptions would not pass the testing.