Sentence 3.1.10.2.(4)

Intent 1:

To limit the probability that the materials used to construct the assembly providing the fire-resistance rating of a firewall will be easily altered or damaged during use, which could lead to an inability of the firewall to control the spread of fire from one building to another building, which could lead to harm to persons in the building not originally involved in fire.

Intent 2:

To limit the probability that the materials used to construct the assembly providing the fire-resistance rating of a firewall will be easily damaged by falling debris during a fire, which could lead to an inability of the firewall to control the spread of fire from one building to another building, which could lead to harm to persons in the building not originally involved in fire.

Intent 3:

To exempt certain materials from the application of Sentence 3.1.10.2.(3) if these materials and their application achieve the minimum level of performance required by Sentence 3.1.10.2.(4)