What Causes Apartment Sprinklers To Go Off?
What Causes Apartment Sprinklers To Go Off? Most sprinkler heads feature a glass bulb filled with a glycerin-based liquid. This liquid expands when it comes in contact with air heated to between 135 and 165 degrees. When the liquid expands, it shatters its glass confines and the sprinkler head activates. What triggers apartment sprinklers? Instead,