A dry riser is an empty pipe used to deliver water to upper floors during a fire, typically in buildings under 50 metres tall. A wet riser is permanently charged with water and used in taller buildings or where access is restricted.
A dry riser is an empty pipe used to deliver water to upper floors during a fire, typically in buildings under 50 metres tall. A wet riser is permanently charged with water and used in taller buildings or where access is restricted.