Where are sidewall sprinklers typically installed?

Where are sidewall sprinklers typically installed?

• A. Installed inside walls.
• B. Installed beneath decks with specific deflector height.
• C. Installed on ceilings.
• D. Installed in attics.

Answer: (B)

Sidewall sprinklers are designed to be mounted on a wall so the deflector sprays horizontally across the room. In low-rise residential layouts, there are situations like spaces under decks where there isn’t a usable ceiling to mount a sprinkler. In those cases, the head is installed beneath the deck with the deflector set at the correct height to ensure the discharge pattern protects the under-deck area. This installation approach matches how sidewall heads are intended to operate, providing effective coverage without relying on a ceiling-mounted configuration. Installing them inside walls, on ceilings, or in attics would not provide the proper spray pattern or accessibility that sidewall sprinklers require.

Sidewall sprinklers are designed to be mounted on a wall so the deflector sprays horizontally across the room. In low-rise residential layouts, there are situations like spaces under decks where there isn’t a usable ceiling to mount a sprinkler. In those cases, the head is installed beneath the deck with the deflector set at the correct height to ensure the discharge pattern protects the under-deck area. This installation approach matches how sidewall heads are intended to operate, providing effective coverage without relying on a ceiling-mounted configuration. Installing them inside walls, on ceilings, or in attics would not provide the proper spray pattern or accessibility that sidewall sprinklers require.