What is the required protection duration for shale brick?

Shale brick generally requires a protection duration of 1 hour. This specific timeframe aligns with fire-resistance ratings for various building materials and construction types as outlined in codes and standards. Shale brick, being a type of masonry unit, is often used in the construction of fire-rated walls and other assemblies to provide a certain level of fire resistance.

The 1-hour protection duration is typically associated with walls and partitions designed to protect against the spread of fire for a limited time, allowing for safe evacuation and minimizing potential fire damage. The association of shale brick with the 1-hour rating ensures that it can structurally withstand a fire for a sufficient period, fulfilling safety requirements in building design and construction pertaining to fire safety regulations.