The integrated fire protection solution requires both high fire resistance and high reaction to fire of the building elements.
sigma panels are engineered to meet the highest fire regulation demands for both criteria, in combination with the highest mechanical properties.
At the same time, they ensure thermal & sound insulation, water & air tightness and they offer to the architects a wide range of modulations, steel types and colors.
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fire resistance up to 180’
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A1, the highest reaction to fire
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excellent mechanical properties
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lower cost back sub-construction
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extraordinary sound insulation
sigma RR
sigma RWs
sigma RW
Frequently Asked Questions
What are mineral wool sandwich panels?
They are insulated sandwich panels with a mineral wool core, designed for fire resistance, thermal performance and industrial building envelopes.
What fire resistance can they provide?
Depending on the certified system and application, they can meet requirements such as EI120–EI180.
Where are they used?
They are commonly used in industrial buildings, warehouses, logistics centers and safety-critical construction projects.
Last updated
This page was updated in 2026 with current information about mineral wool sandwich panels and fire resistance requirements.