Designed for precision-built enclosures, Fire Retardant PIR Hidden Tongue & Groove Panels integrate a concealed interlocking joint system with fire-retardant polyisocyanurate (PIR) insulation to limit air leakage, reduce thermal bridging, and improve enclosure continuity across panel joints.

Colour Shades
Fire Retardant PIR Hidden Tongue & Groove Panels are supplied with a standard colour-coated finish selected to meet functional zoning, architectural coordination, and environmental exposure requirements. The pre-coated metal facings are factory-finished to ensure uniform colour consistency, corrosion resistance, and long-term surface stability under industrial and coastal operating conditions.
Select Color:
Key Performance Attributes
Outlining essential performance parameters influencing fire behaviour, insulation efficiency, and enclosure integrity.
Airtight Jointing
Concealed tongue and groove joints restrict air infiltration and improve enclosure tightness.
Enhanced Fire Behavior
Fire-retardant PIR insulation exhibits improved fire performance compared to standard polyurethane foam.
High Insulation Efficiency
Low thermal conductivity of PIR insulation supports stable internal temperatures and reduced heat transfer.
Dimensional Stability
PIR core maintains insulation and structural integrity under elevated operating temperatures.
Available Joints
Mount’s panel joint configurations ensure precise alignment, secure interlocking, and effective load transfer, enhancing structural continuity, air and moisture tightness, and installation efficiency while maintaining long-term durability .

Roof Joint

Single Tongue & Groove Joint

Double Tongue & Groove Joint

Hidden Tongue & Groove

Camlock Joint

M Section
Applications
Wide-ranging applications for Fire Retardant PIR Hidden Tongue & Groove Panels

Cold Storage Chambers & Freezer Rooms
Used in temperature-controlled enclosures where thermal efficiency and improved fire behavior are required.

Food Processing & Packaging Areas
Suitable for hygienic wall and ceiling systems with sealed joints and controlled fire performance.

Pharmaceutical Production & Secondary Packaging Zones
Supports clean and controlled environments with insulation continuity and fire-retardant construction.

Temperature-Controlled Warehouses
Helps maintain internal thermal consistency while addressing higher fire safety requirements.

Dairy, Meat & Frozen Food Facilities
Appropriate for high-humidity operations requiring stable insulation and fire-safe enclosure systems.

Clean Utility & Process Rooms
Applied in plant areas where enclosure integrity and fire-retardant insulation are essential.

Electronics Assembly & Testing Areas
Provides controlled indoor conditions with reduced fire risk in sensitive manufacturing zones.

Industrial Cold Rooms & Ripening Chambers
Used in facilities requiring consistent temperatures and improved fire performance.
Frequently asked Question
It is an insulated sandwich panel with a concealed interlocking joint and a fire-retardant polyisocyanurate (PIR) insulation core.
PIR insulation offers improved fire behaviour and lower thermal conductivity compared to conventional polyurethane foam.
The concealed joint improves enclosure continuity by reducing air gaps and thermal bridges at panel interfaces.
No insulation panels are fireproof; PIR panels provide enhanced resistance to flame spread and heat release.
Yes, they are suitable where thermal insulation and improved fire behaviour are both required.
Yes, they are designed for wall and ceiling applications.
By minimizing air leakage and thermal loss, the panels support efficient heating and cooling operation.
PIR insulation has a closed-cell structure that limits moisture absorption under normal operating conditions.
No, precision joint geometry supports accurate alignment and consistent installation.
Fire performance requirements, insulation needs, operating temperature, and applicable building regulations.









