In which foam application method is the foam lofted into the air?

The rain-down method is specifically designed for lofting foam into the air, allowing it to fall gently over the target area, such as a fire. This technique is particularly effective for creating a foam blanket that covers the burning materials and helps suppress flammable vapors. By allowing the foam to rain down rather than applying it directly from the ground level, this method enhances the effectiveness of the foam in large or high-heat scenarios by ensuring better distribution and coverage over the affected area.

This method takes advantage of gravity, allowing the foam to gently cascade down, which is beneficial for protecting exposures that might be sensitive to aggressive firefighting tactics. The gentle nature of the application helps maintain the integrity of the foam, ensuring it can provide the necessary insulation to suppress the fire effectively.