Kingspan GreenGuard GG300R is a robust extruded polystyrene (XPS) insulation board specifically engineered for applications where high strength and moisture resistance are essential. With a thermal conductivity of 0.033 W/mK, this rigid insulation board delivers dependable thermal performance across a wide range of specialist projects.
Its exceptional compressive strength makes it particularly suited for high-load environments like inverted flat roofs, basements, car park decks, cold storage floors, and heavy-duty industrial settings. Whether you're working on a commercial project or an intensive residential build, GG300R can withstand pressure from both vehicles and equipment.
Moisture Resistance and Long-Term Performance
Thanks to its minimal water absorption and resistance to ground moisture, Kingspan GreenGuard GG300R maintains its thermal integrity in damp and below-ground conditions. It’s also designed to handle freeze-thaw cycles without degradation, making it an excellent choice for external insulation beneath waterproofing membranes or green roof systems.
The board is easy to install, lightweight yet strong, and compatible with most common building materials and finishes.
Available Sizes
Kingspan GG300R comes in multiple thickness options to suit your specification needs:
30mm (1250mm x 600mm) – covers 10.5m² per Pack
40mm (1250mm x 600mm) – covers 7.5m² per Pack
50mm (1250mm x 600mm) – covers 6m² per Pack
60mm (1250mm x 600mm) – covers 5.25m² per Pack
80mm (1250mm x 600mm) – covers 3.75m² per Pack
100mm (1250mm x 600mm) – covers 3m² per Pack
120mm (1250mm x 600mm) – covers 2.25m² per Pack
150mm (1250mm x 600mm) – covers 1.5m² per Pack
Key Features
Rigid XPS insulation for high-load bearing applications
Thermal conductivity of 0.033 W/mK
Withstands vehicle and heavy equipment loads
Excellent resistance to moisture and ground penetration
Freeze-thaw resistant for long-term durability
Compatible with green and inverted roof systems
Frequently Asked Questions
1. Can Kingspan GG300R be used below ground?
Yes, it is ideal for below-ground applications like **basement walls and floors** due to its moisture resistance and compressive strength.
2. Is this insulation suitable for car parks or industrial floors?
Absolutely. GG300R is designed to handle **heavy-duty loads**, making it perfect for areas that experience frequent vehicle traffic or industrial use.
3. Does this insulation absorb water over time?
No, GG300R is designed with **very low water absorption** and maintains performance even in wet or humid conditions, including freeze-thaw environments.
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