Lightning Rod Installation On Metal Roof

Lightning hits the hi.

Lightning rod installation on metal roof. End rods should be no more than 2 feet from the end of roof or outside corner s. Metal roofs do not attract lightning strikes. Lightning strikes on metal roofs are an understandable concern for homeowners considering an upgrade to a metal roof. A metal roof should never have copper lightning protection components installed on it unless the roof metal is copper says mark s.

It is faulty logic to assume that a metal roof attracts lightning strikes similarly to a lightning rod because lightning rods are not made to attract lightning. Space roof lightning rods air terminals evenly no more than 20 feet apart or 25 ft. There are many types of finials such as solid poles hollow poles flat strips or even bristle shaped and although copper and copper alloys are the most common materials used in the construction of lightning rods a number of different conductive metals can be made into a rod. Metal roofs are resistant to wind and hail weigh less than asphalt shingles require little maintenance and are energy efficient.

Apart if lightning rods are over 24 tall. When lightning is ready to discharge it will whether there is a metal roof handy or not. When a flat roof has dimensions greater than 15 m by 15 m additional air terminals will be installed in the middle of the roof at intervals of 15 m or less in a. Nor do metal roofs protect a building against lightning.

The most obvious above roof components are air terminals formerly called lightning rods. Because metal roofs are by definition made out of metal you might be concerned about lightning and wonder whether you need to attach a lightning rod to your metal roof. Lightning rods are typically installed around the perimeter of flat roofs or along the peaks of sloped roofs at intervals of 6 1 m or 7 6 m depending on the height of the rod. Still the type of roofing is one of several risk factors.

Lightning is a powerful destructive force of nature and will strike a building regardless of its type of roofing. Also harger feels it is imperative that the installation contractor follow the roofing manufacturer s requirements when it comes to attaching. Harger president ceo harger lightning grounding grayslake ill. They must be located at the highest points on a roof.

The only way to protect a building is with a properly designed and installed lightning protection system lps.