In Using Spray- on Fire Protection for Floor and Roof

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The Answer is The reason for applying spray-on fire protection on roof decks and supporting beams, but not on floor decks, is due to the different fire protection requirements for each assembly. Roof assemblies are typically more exposed to potential fire hazards, such as from neighboring buildings or airborne embers, so it is important to provide fire protection to both the roof deck and supporting beams to prevent the spread of fire.

On the other hand, floor assemblies are generally less susceptible to direct fire exposure, especially in multi-story buildings where the floor decks are shielded by the floors above and below. Additionally, the floor deck itself is typically made of non-combustible materials, such as concrete or steel, which already provide a certain level of fire resistance. Therefore, the focus of fire protection for floor assemblies is primarily on the supporting beams, which are more vulnerable to fire damage.

By applying spray-on fire protection only to the supporting beams of floor assemblies, we can effectively protect the most critical components while also optimizing the use of fire protection materials and resources. This approach ensures that the floor assemblies meet the necessary fire safety standards without unnecessary over-protection.

In Using Spray- on Fire Protection for Floor and Roof

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