What is the requirement for indoor gardens in terms of sprinkler protection?

The requirement for indoor gardens concerning sprinkler protection is based on the need to mitigate fire hazards that can arise from the accumulation of combustible materials, such as plants and organic matter. The correct response indicates that if these gardens exceed specified thresholds—such as size or plant type—sprinkler systems must be installed to ensure effective fire suppression.

This requirement aims to provide an adequate safety measure in an environment where the growth of plants can increase the risk of fire due to potentially high fuel loads. It reflects NFPA 13's overall emphasis on ensuring proper protection against fire in various occupancy types, particularly in facilities where the fire load could be significant.

By mandating sprinkler systems when certain thresholds are exceeded, this requirement helps to ensure that adequate means of fire control are in place, thereby enhancing the safety of the building occupants and property. This aligns with the overarching principle of fire safety that focuses on proactive measures to manage potential risks effectively.