For encapsulated storage, what is the maximum horizontal spacing for sprinklers?

In encapsulated storage scenarios, the maximum horizontal spacing for sprinklers is critical to ensuring adequate coverage and effective fire suppression. The maximum spacing is determined by NFPA (National Fire Protection Association) guidelines, which specify that when dealing with storage that is encapsulated or has limited airflow, sprinkler protection should be more rigorous to account for potential fire spread.

The maximum horizontal spacing of 8 feet allows for a denser arrangement of sprinklers, ensuring that the entire area is adequately protected. The reduced distance between the sprinklers decreases the likelihood of any unseen hot spots or fires going unaddressed. This spacing is specifically important for encapsulated materials, where the risk of a fire is higher due to the materials' density and potential for rapid spread.

In contrast, greater spacing, such as 10, 12, or 14 feet, may not provide sufficient coverage under the conditions associated with encapsulated storage and could risk the effectiveness of the sprinkler system during a fire event. Thus, adhering to the maximum of 8 feet is essential for maintaining safety and compliance with fire protection standards in these storage environments.