Sundolitt XPS 300 Insulation Board 30mm

30mm Sundolitt XPS 300 (300kPa) Insulation Board is a rigid extruded polystyrene XPS insulation board engineered for high-performance applications in moisture-rich settings. Particularly effective for inverted roofs, flat and zero-pitch roof systems, green roof installations and ground-bearing projects where strength, durability and sustained thermal efficiency are paramount.

Built with a closed-cell XPS structure, this 30mm board delivers superior water resistance, moisture protection and frost durability. Unlike conventional insulation materials, it resists water penetration, snow accumulation and sustained dampness, maintaining consistent thermal performance over its entire lifespan. This makes it especially valuable for exposed locations and subterranean installations.

Lightweight and straightforward to work with, 30mm Sundolitt XPS 300 insulation boards can be trimmed on-site using standard tools. The material stays dimensionally stable and installs easily regardless of weather, providing reliable storage and installation without performance loss.

Delivering 300kPa compressive strength, Sundolitt XPS 300 offers an economical, minimal-maintenance option for projects demanding substantial load-bearing performance. Typical uses span solid floor construction, foundation work, industrial flooring, cold storage and chilled facilities, plus residential and commercial ground floor insulation schemes.

Key Benefits

1. Brand: Sundolitt
2. Model: 30mm XPS300 Sundolitt
3. Thickness: 30mm
4. Dimensions: 2400mm x 600mm x 30mm
5. Length: 2400mm
6. Width: 600mm
7. Board m2: 1.44m2
8. Board Weight: 1.70kg / board
9. Density: 33kg/m3
10. Compressive Strength: 300kPa
11. Tensile Strength: ≥ 600
12. R-Value: 0.9m2K/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 30mm XPS insulation board performs exceptionally well for basement insulation and subterranean construction, including installations positioned below the water table. Its closed-cell composition guarantees extended thermal efficiency and structural stability in groundwater-exposed or persistently wet conditions.

Engineered to address contemporary construction and civil engineering demands, 30mm Sundolitt XPS 300 insulation boards provide outstanding thermal performance, longevity and flexibility across the most demanding scenarios.

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 applications. Primary uses 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

Engineered to deliver high compressive strength, exceptional thermal performance and moisture resistance, Sundolitt 30mm XPS 300 suits demanding UK environments where durability and sustained performance matter.

Info

Browse our full range of Sundolitt XPS Insulation products. We serve the entire UK Mainland. To discuss product suitability for your project or request a bulk discount quotation, contact us on 02038839057 / 02038839057, email sales@insulationbee.co.uk or use Live Chat - Lowest UK Insulation Prices near me.