As more PV systems are being installed on commercial rooftops across the world, an increase in the incidence of fires has been noted. Whilst these are generally not caused by the PV panels themselves, their presence can affect how a fire may develop, and to date there has been little research on how the building materials used underneath a rooftop array may perform.

To start to fill this knowledge gap, Kingspan Insulation commissioned Efectis to conduct two rounds of comparative tests to understand the relative fire performance of flat roof build-ups, the first was insulated with one Euroclass A1 rated dual density synthetic rock mineral fibre insulation product, recommended for use under PV systems, and the second, an FM Approved Kingspan Therma™ TR26 PIR insulation product. Both insulation products were sourced from the Dutch market.

Download the white paper for full details of how the tests were conducted and the results.