Lightning Rod Installation On Metal Roof

Depending on the building s size and configuration additional air terminals are required around the roof perimeter at intervals not exceeding 20 feet within the field of the roof on rooftop.

Lightning rod installation on metal roof.

A metal roof should never have copper lightning protection components installed on it unless the roof metal is copper says mark s. Extensive research on lightning protection reveals that metal roofing is no more likely to attract a lightning strike than any other type of conventional roofing material. End rods should be no more than 2 feet from the end of roof or outside corner s. Lightning strikes on metal roofs are an understandable concern for homeowners considering an upgrade to a metal roof.

Harger president ceo harger lightning grounding grayslake ill. Also harger feels it is imperative that the installation contractor follow the roofing manufacturer s requirements when it comes to attaching. Space roof lightning rods air terminals evenly no more than 20 feet apart or 25 ft. Nor do metal roofs protect a building against lightning.

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. The only way to protect a building is with a properly designed and installed lightning protection system lps. Lightning is a powerful destructive force of nature and will strike a building regardless of its type of roofing. Metal roofs do not attract lightning strikes.

The most obvious above roof components are air terminals formerly called lightning rods. When considering a metal roof for your home please keep in mind that while metal conducts electricity it does not draw or attract it. Apart if lightning rods are over 24 tall. Still the type of roofing is one of several risk factors.

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. Metal roofs are resistant to wind and hail weigh less than asphalt shingles require little maintenance and are energy efficient. They must be located at the highest points on a roof. 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.