Kingspan GreenGuard GG300 600mm x 1250mm
Kingspan GreenGuard GG300 600mm x 1250mm - 30mm - 14 Per Pack is backordered and will ship as soon as it is back in stock.
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Kingspan GreenGuard GG300 – High Performance Rigid Insulation Board
Kingspan GreenGuard GG300 is a rigid extruded polystyrene (XPS) insulation board, designed to deliver reliable thermal performance in demanding building applications. Manufactured with a closed-cell structure, GG300 boards provide high compressive strength, low water absorption, and long-lasting insulation efficiency.
Suitable for use in floors, walls, and roofs, Kingspan GG300 is particularly effective where resistance to ground moisture and freeze-thaw cycles is required. Common applications include below-ground insulation, inverted roofs, car park decks, and industrial floors.
The boards are lightweight, easy to cut, and simple to install, making them a practical solution for both new build and refurbishment projects. With excellent durability and consistent performance, GG300 helps meet modern energy-efficiency requirements while protecting the building fabric.
Key Features:
✔️ Rigid extruded polystyrene (XPS) insulation board
✔️ High compressive strength – ideal for heavy-duty applications
✔️ Low water absorption for long-term thermal efficiency
✔️ Suitable for floors, walls, roofs, and below-ground installations
✔️ Lightweight and easy to handle on site
Typical Applications:
-
Inverted flat roofs
-
Car park decks and podiums
-
Basement walls and floors
-
Industrial and commercial flooring
Kingspan GreenGuard GG300 offers a dependable, cost-effective insulation solution that supports compliance with building regulations and contributes to improved energy efficiency.

Description
Description
Kingspan GreenGuard GG300 – High Performance Rigid Insulation Board
Kingspan GreenGuard GG300 is a rigid extruded polystyrene (XPS) insulation board, designed to deliver reliable thermal performance in demanding building applications. Manufactured with a closed-cell structure, GG300 boards provide high compressive strength, low water absorption, and long-lasting insulation efficiency.
Suitable for use in floors, walls, and roofs, Kingspan GG300 is particularly effective where resistance to ground moisture and freeze-thaw cycles is required. Common applications include below-ground insulation, inverted roofs, car park decks, and industrial floors.
The boards are lightweight, easy to cut, and simple to install, making them a practical solution for both new build and refurbishment projects. With excellent durability and consistent performance, GG300 helps meet modern energy-efficiency requirements while protecting the building fabric.
Key Features:
✔️ Rigid extruded polystyrene (XPS) insulation board
✔️ High compressive strength – ideal for heavy-duty applications
✔️ Low water absorption for long-term thermal efficiency
✔️ Suitable for floors, walls, roofs, and below-ground installations
✔️ Lightweight and easy to handle on site
Typical Applications:
-
Inverted flat roofs
-
Car park decks and podiums
-
Basement walls and floors
-
Industrial and commercial flooring
Kingspan GreenGuard GG300 offers a dependable, cost-effective insulation solution that supports compliance with building regulations and contributes to improved energy efficiency.
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