80mm Sundolitt XPS 300 Insulation Board (Pack 5)

80mm Sundolitt XPS 300 (300kPa) Insulation Board is a high-performance, rigid extruded polystyrene XPS insulation board designed for use in demanding, high-moisture environments. It is ideally suited to inverted roofs, flat and zero-pitch roofs, green roof systems and ground-bearing applications where durability, strength and long-term thermal performance are essential.

Manufactured using a closed-cell XPS structure, 80mm Sundolitt XPS 300 offers excellent resistance to water ingress, moisture and frost. Unlike many traditional insulation materials, it is not affected by rain, snow or prolonged exposure to damp conditions, ensuring consistent insulation performance throughout its service life. This makes it particularly suitable for use in exposed or below-ground installations.

Lightweight and easy to handle, 80mm Sundolitt XPS 300 insulation boards can be cut on site without specialist tools or equipment. The material remains stable and easy to install even in severe weather conditions, allowing for flexible storage and installation with no deterioration in performance.

With a high compressive strength of 300kPa, Sundolitt XPS 300 provides a cost-effective, low-maintenance solution for applications requiring exceptional load-bearing capability. It is commonly used in solid floors, foundations, industrial flooring, cold stores and chilled storage facilities, as well as domestic and non-domestic ground floor insulation projects

Key Benefits

1. Brand: Sundolitt
2. Model: 80mm XPS300 Sundolitt
3. Thickness: 80mm
4. Dimensions: 1,200mm x 600mm x 80mm
5. Length: 1200mm
6. Width: 600mm
7. Board m2: 0.72m2
8. Pack m2: 3.6m2
9. Board Weight: 2.64kg / board
10. Pack Weight: 8.93kg
11. Density: 33kg/m3
12. Compressive Strength: 300kPa
13. Tensile Strength: ≥ 600
14. R-Value: 2.35m2K/W
15. Thermal Conductivity: 0.033 W/mK
16. Material: Extruded Polystyrene (XPS)
17. Finish: Smooth
18. Applications: High moisture environments ǀ Multi-purpose
19. Features: Closed-cell rigid thermal XPS insulation
20. Fire Performance: F

• Please click the following for a single board: Buy a single Sundolitt XPS 300 board

This high-strength 80mm XPS insulation board is also an ideal choice for basement insulation and below-ground construction, including installations below the water table. Its closed-cell formulation ensures long-term thermal efficiency and structural integrity even in environments exposed to groundwater or persistent moisture.

Designed to meet the needs of modern construction and civil engineering, 80mm Sundolitt XPS 300 insulation boards deliver outstanding thermal performance, durability and versatility in the most challenging conditions.

XPS 300 Sundolitt Insulation Applications – UK Construction & Civil Engineering

Sundolitt XPS 300 (300kPa) insulation boards are highly versatile and suitable for a wide range of UK construction, civil engineering, and industrial projects. Key applications include:

1. Car parks, airports, runways, roads, and motorways
2. Civil engineering projects and large-scale infrastructure
3. Solid flooring and foundation insulation for domestic and commercial buildings
4. Industrial floors, cold stores, and chilled storage facilities
5. Inverted roof systems, flat or zero-pitch roofs, and green roof applications
6. External wall insulation systems below DPC level
7. Below-ground insulation for floors and walls, including basements
8. Landscaping, groundworks, and large void fill projects

Designed to provide high compressive strength, excellent thermal performance, and moisture resistance, Sundolitt 80mm XPS 300 is ideal for demanding UK environments where durability and long-term performance are critical.

Info

Have a browse of our Sundolitt XPS Insulation products. We supply to the entire UK Mainland. If you’d like to talk through the suitability of some products for your project, or get a quantity discount quotation please call us by phone on 02039519012 / 02038839057, email sales@insulationstoreonline.co.uk or Live Chat - Lowest UK Insulation Prices near me.