Conventional lightning protection (Faraday cage / mesh)
A mesh of air-termination conductors and rods on the roof, connected by down-conductors to an earth electrode. The most reliable and predictable solution for flat roofs, industrial halls and large buildings. Designed using the rolling sphere and mesh methods in accordance with EN 62305-3.
Early streamer emission (ESE) air terminals
A single active air terminal on a mast covers a radius of tens of metres. Suitable for houses, villas, buildings with complex roofs and open areas where a mesh would be expensive or unsightly. Installed to NF C 17-102 and Ordinance No. 4.
What the installation includes
- Risk assessment and determination of the lightning protection class (I–IV)
- Air-termination system – rods, mesh or ESE air terminal on a mast
- Down-conductors – concealed or exposed, with test joints
- Earth electrode – ring, radial or deep-driven, depending on the soil
- Equipotential bonding and connection to the building's main earthing terminal
- Test certificate and installation record
Suitable for
- Detached houses and villas, especially in open and mountainous areas
- Apartment blocks and buildings with rooftop photovoltaics
- Warehouses, production halls, agricultural buildings
- Schools, kindergartens, hotels, public buildings
Frequently asked questions
Is lightning protection mandatory for my house?
Ordinance No. 4/2010 defines which sites require mandatory lightning protection, depending on their category and location. For most new buildings it is required at the design stage. For existing houses in open or mountainous areas we strongly recommend it, even if it is not formally mandatory.
Conventional or ESE lightning rod?
It depends on the roof, the area and the budget. For flat roofs and halls the mesh is more reliable and often cheaper. For houses with complex pitched roofs a single ESE terminal is faster to install and less visible. At the survey we show you both options, with prices.
How long does installation take?
For a detached house – usually one to two working days including the earth electrode. For large buildings – depending on the design, from a few days to several weeks.
