Description

XPS Extruded Thermal Insulation

XPS X 300 SB extruded polystyrene thermal insulation can be used in a wide range of applications. It has a number of beneficial properties thanks to its homogeneous, closed-cell material structure:

• permanently high thermal insulation level
• negligible moisture uptake
• high strength and rigidity
• dimensional stability
• resistance to rot and deterioration
• simple and quick installation with only a small amount of waste.

XPS X 300 SB is excellent for thermal insulation in:

• domestic floors
• industrial floors
• cold storage floors
• speciality floors

BENEFITS

XPS X 300 SB thermal insulation is manufactured by an extrusion process, resulting in a homogeneous, closed-cell material structure, a smooth surface skin (extrusion skin) and many favourable material properties:

• • permanently high thermal insulation performance
  • water resistance
  • high compressive strength
  • high flexible rigidity
  • high vapour diffusion resistance

STRUCTURES IN CONTACT WITH THE SOIL

To avoid creating a thermal bridge, XPS X 300 SB boards with butt edge finishing must be laid with no gaps between the boards.

The thermal insulation can be cut easily and accurately using hand tools.

The maximum installation depth of the thermal insulation is determined by the load: the horizontal pressure must not exceed the compressive strength of the boards, taking into account the value of the permanent load.

FLOORS

In the case of a compressed gravel bed or thin blind concrete, XPS X 300 SB thermal insulation must be laid down directly using screed levelling if required. If the thermal insulation is installed above the waterproofing membrane, it serves as a mechanical protective layer.

In the case of domestic floors and floor heating, the heavy-duty heat-insulating layer provides a firm base for the base concrete (screed) and underfloor heating. Heating pipes can be fastened directly to the thermal insulation.

IMPORTANT

The permanent application temperature of XPS X products is. 75°C maximum. At higher temperatures, the boards will start to soften and suffer permanent deformation.

XPS X products contain an ecologically safe flame-retardant additive, as a result of which they will be self-extinguishing under their ignition temperature. They will, however, burn if exposed to an intensive ignition source.

XPS X products are compatible with commonly-used construction materials which don’t contain solvents or softeners (bituminous components without solvents, water-based wall protecting materials, lime, cement, masonry mortars and plasters, anhydrous gypsum etc).

Certain organic materials, such as solvent-based wood preservatives, paint additives, solvents (acetone, ethyl acetate, kerosene, gasoline etc.) will cause softening, shrinking and damage to the material.

For gluing, solvent-free adhesives must be used. Follow the supplier’s guidance.

XPS X products must not be exposed to permanent intensive direct sunlight.

Key Properties of XPS Extruded Thermal Insulation

Our XPS extruded thermal insulation is designed to support demanding projects where thermal insulation, moisture resistance, and long-term reliability are essential. The material is manufactured as extruded polystyrene, giving it a closed cell structure that delivers stable, efficient performance across a wide range of applications.

Key features include:

• Exceptional thermal performance supported by a uniform extruded polystyrene foam core
• Moisture resistant properties that help protect floors, walls, and basements from water absorption
• High compressive strength to support domestic and industrial floors, car park decks, and load-bearing areas
• Lightweight insulation boards that are simple to handle and cut with minimal waste
• Consistent energy efficiency due to low thermal conductivity and excellent thermal insulation properties
• Durability that helps the boards withstand pressure, impact, and long-term exposure to challenging conditions

These qualities make XPS X products a high performance extruded polystyrene choice for projects that need strength, stability, and dependable thermal performance without compromising ease of installation.

Installation and Performance Considerations for XPS Systems

The installation process for XPS insulation requires attention to load conditions, waterproofing layers, and compatibility with surrounding materials. When installed correctly, the insulation helps protect the building fabric and supports energy efficiency across a range of environments.

XPS insulation boards perform best where moisture control is a priority. Their closed cell structure supports dependable moisture resistance, making the system suitable for basements, cellar walls, flat roofs, and inverted roofs. Care must be taken to use solvent free adhesives and to protect the boards from direct intense sunlight during handling.

In areas such as domestic floors, industrial floors, and car park decks, XPS X maintains high compressive strength and withstands pressure without losing shape. This supports long term durability and helps protect the waterproofing membrane in systems where the insulation is installed above it.

Practical Uses of XPS Boards in Domestic and Industrial Environments

XPS extruded thermal insulation works well in domestic settings where thermal insulation and moisture control are priorities. The boards can be used under screed, under floor heating, or as part of systems that help reduce heating costs and improve overall energy performance in the home.

In industrial environments, the high strength and rigidity of extruded polystyrene make the insulation suitable for large floors, cold storage spaces, and heavy duty installations where the insulation must withstand continuous load. The consistent shape, range of thickness options, and lightweight handling help streamline installation across varied project conditions.

Applications extend across walls, floors, roofs, and areas exposed to moisture such as basement structures. Whether used for inverted roofs, flat roofs, industrial floors, or cellar perimeter walls, XPS boards offer versatile applications supported by dependable performance and strong resistance properties.