Air dispersion systems should not penetrate what type of construction?

Air dispersion systems, which help manage air quality and temperature in a building, should not penetrate fire-resistance-rated construction due to the critical role these structures play in containing fire and smoke. Fire-resistance-rated construction is designed to withstand a fire for a specified period, preventing its spread and protecting the building's occupants and property. Any penetration through such barriers can compromise their integrity, making them less effective at slowing down or stopping the movement of fire and smoke.

Additionally, allowing air dispersion systems to pass through these fire-rated walls could create an unwanted pathway for fire and smoke, diminishing the purpose of having those fire-resistance-rated barriers in the first place. Therefore, it is essential to ensure that air dispersion systems are appropriately designed and positioned to avoid any openings in fire-rated constructions, thus maintaining the safety protocols established in building codes and fire safety regulations.