Is a cement board required for fire protection under PV systems on flat roofs? This knowledge article explains whether AllShield BarrierSheet can be used as an alternative and how both solutions compare in function performance and roof load.
AllShield BarrierSheet is FM Approved for FM 4478 PV roof assemblies. The non-combustible mineral cover board delivers proven downward fire protection, supporting fire-safe and insurable photovoltaic roofs worldwide.
AllShield BarrierSheet is now FM 4470 Approved as a mineral cover board for flat industrial roofs. This approval confirms compliance with the global benchmark for fire-safe and insurable roof assemblies, enabling FM Approved Class 1 Roof systems with approved membranes.
Broof(Tx) tells only part of the story. PV fires start under the panel, not above the roof. Discover why Broof(Tx) is not enough and how AllShield BarrierSheet protects roofs against real downward fire.
New research by QBE Insurance shows a 60% rise in rooftop fires caused by solar panels. The main culprits: aging systems and combustible roofs. The solution is clear — install solar panels only on non-combustible surfaces like AllShield BarrierSheet or AllShield Blue.
At first sight, a solar rooftop system may seem to run flawlessly for years. But the real risk lies beneath the surface. Installation errors and material ageing can trigger fire — sometimes in the first year, sometimes after 12 or 15 years. Only a non-combustible layer in the roof build-up stops fire from spreading and keeps your property insurable.
Cyber attacks … and roof fires? The EU’s new NIS2 rules demand that critical companies address all risks – including physical ones. Learn how a non-combustible roof coating safeguards facilities and supports NIS2 compliance.
Rooftop fires don’t start in the roof itself, they start in failing solar components. Connectors, cables and inverters are weak points that can ignite a blaze. AllShield ensures that even if these failures happen, your combustible roof will not catch fire.
Roof fires with PV systems can scatter dangerous glass and EVA fragments, harming people and property. Glass and Plastic based panels are the main source of this debris. AllShield explains why only a non-combustible roof build-up makes solar roofs truly safe and insurable.
AllShield Blue is now FM 4484 Approved — the world’s first coating that makes roofs fire-safe and insurable under PV systems. A breakthrough in solar roof safety.
European research confirms: rooftop fires spread because of combustible roofs. AllShield makes roofs inherently safe and insurable — even with solar panels.
FM and other insurers use FM standards to judge if combustible roofs with PV are insurable. ZAG testing proves AllShield BarrierSheet makes them functionally non-combustible, giving engineers the certainty to approve safe, insurable solar rooftops.
