Make sure your address is clearly visible from the street. The numbers should be three or four inches in height and be reflective.
When the fire department responds to a given location, it may be delayed in arriving if the address is not clearly seen from the street. Although it's fairly easy to spot a column of smoke from a house fire, it's difficult to see someone's heart attack from the street. In a medical emergency, firefighters may spend critical time searching to find the correct address.