80mm Sundolitt XPS 300 Insulation Board

80mm Sundolitt XPS 300 (300kPa) Insulation Board is a high-performance, rigid extruded polystyrene XPS insulation board engineered for demanding, high-moisture applications. It performs exceptionally well in inverted roofs, flat and zero-pitch roof systems, green roof installations and ground-bearing projects where strength, durability and sustained thermal performance are paramount.

Built with a closed-cell XPS structure, 80mm Sundolitt XPS 300 delivers outstanding protection against water penetration, moisture absorption and frost damage. Unlike conventional insulation materials, it resists rain, snow and sustained damp exposure, maintaining consistent thermal properties throughout its operational life. This characteristic makes it particularly valuable for exposed locations and below-ground installations.

Lightweight and straightforward to work with, 80mm Sundolitt XPS 300 insulation boards can be trimmed on-site using standard tools. The material maintains its stability and workability even in challenging weather, offering flexible handling and installation without any loss of performance.

Delivering a compressive strength of 300kPa, Sundolitt XPS 300 provides an economical, maintenance-free option for applications demanding substantial load-bearing capacity. Typical uses include solid ground floors, building foundations, industrial flooring, cold storage and chilled facilities, alongside domestic and commercial ground floor insulation schemes.

Key Benefits

1. Brand: Sundolitt
2. Model: 80mm XPS300 Sundolitt
3. Thickness: 80mm
4. Dimensions: 2400mm x 600mm x 80mm
5. Length: 2400mm
6. Width: 600mm
7. Board m2: 1.44m2
8. Board Weight: 1.65kg / board
9. Density: 33kg/m3
10. Compressive Strength: 300kPa
11. Tensile Strength: ≥ 600
12. R-Value: 1.47m2K/W
13. Thermal Conductivity: 0.033 W/mK
14. Material: Extruded Polystyrene (XPS)
15. Finish: Smooth
16. Applications: High moisture environments ǀ Multi-purpose
17. Features: Closed-cell rigid thermal XPS insulation
18. Fire Performance: F

• Please click the following for a Pack: Pack of Sundolitt XPS 300 boards

This robust 80mm XPS insulation board is particularly suited to basement insulation and subsurface construction, including installations beneath the water table. Its closed-cell design guarantees enduring thermal efficiency and structural stability in environments subject to groundwater contact or persistent moisture conditions.

Engineered to meet contemporary construction and civil engineering requirements, 80mm Sundolitt XPS 300 insulation boards provide superior thermal performance, longevity and adaptability across the most demanding applications.

XPS 300 Sundolitt Insulation Applications – UK Construction & Civil Engineering

Sundolitt XPS 300 (300kPa) insulation boards deliver versatility across numerous UK construction, civil engineering and industrial sectors. Primary applications encompass:

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

Engineered for high compressive strength, superior thermal performance and moisture resistance, Sundolitt 80mm XPS 300 suits demanding UK environments where performance longevity and reliability are essential.

Info

Browse our full range of Sundolitt XPS Insulation products. We deliver across the entire UK Mainland. For project-specific guidance, product suitability advice or bulk quotations, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Competitive UK Insulation Pricing.