Uniform fire protection required for solar facades

With correct planning and the use of high-quality components as well as professional installation, the fire risk of solar facades can be reduced to a minimum. The Association of Cantonal Fire Insurers (VKF) emphasizes that it is all the more important to comply with the fire protection regulations that apply throughout Switzerland. All fire protection authorities are responsible for their implementation in their respective cantons and must comply with them. The regulations are based on the politically accepted safety level in Switzerland. They have proven their worth over many years. The overriding goal is to ensure the protection of people and animals in the event of a fire and to prevent damage to property.

Increased requirements

There would be no increased fire protection requirements for photovoltaic systems on single-family homes and buildings under eleven meters, according to the VKF. For installation on roofs, there is an industry solution accepted throughout Switzerland (state of the art paper) by Swissolar, Swiss Professional Association for Solar Energy. For combustible facades on buildings over eleven to 30 meters, fire safety regulations require that the fire cannot spread excessively, it is further stated. Such proof requires prior fire tests. If this provision is circumvented, future occupants would be exposed to an increased fire risk. The regulations apply to all façade systems, according to VKF. Glass photovoltaic modules would be no exception. The fire behavior of PV systems on facades is currently being investigated. Based on the findings and results of these tests, Swissolar is currently preparing a state of the art paper for PV systems on facades. Until the state of the art paper is available, the planners must submit an individual concept to the cantonal fire protection authorities that is geared to the protection goals of the building.
Source: VKF