30mm Sundolitt XPS 300 Insulation Board

30mm Sundolitt XPS 300 (300kPa) Insulation Board is a robust, rigid extruded polystyrene XPS insulation board engineered for challenging, moisture-rich conditions. This product performs exceptionally well in inverted roofs, flat and zero-pitch roof systems, green roof installations and ground-bearing applications where strength, durability and sustained thermal efficiency are paramount.

Built with a closed-cell XPS structure, 30mm 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 performance over its entire lifespan. This makes it particularly valuable for exposed locations and below-ground installations.

Simple to manage and straightforward to cut on-site without specialist equipment, 30mm Sundolitt XPS 300 insulation boards remain stable and convenient to fit in all weather conditions. The material supports flexible storage and installation approaches without any loss of performance quality.

Offering a high compressive strength rating of 300kPa, Sundolitt XPS 300 represents a practical, low-maintenance option for projects demanding exceptional load-bearing performance. Applications include solid floors, structural foundations, industrial flooring, cold storage and chilled distribution centres, plus domestic and commercial ground floor insulation schemes.

Key Benefits

1. Brand: Sundolitt
2. Model: 30mm XPS300 Sundolitt
3. Thickness: 30mm
4. Dimensions: 1,200mm x 600mm x 30mm
5. Length: 1200mm
6. Width: 600mm
7. Board m2: 0.72m2
8. Pack m2: 10.08m2
9. Board Weight: 0.85kg / board
10. Pack Weight: 11.90kg
11. Density: 33kg/m3
12. Compressive Strength: 300kPa
13. Tensile Strength: ≥ 600
14. R-Value: 0.9m2K/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 30mm XPS insulation board works well for basement applications and below-ground construction, including installations positioned below the water table. The closed-cell composition guarantees sustained thermal efficiency and structural stability even in groundwater-exposed or persistently damp settings.

Developed to serve contemporary construction and civil engineering requirements, 30mm Sundolitt XPS 300 insulation boards deliver exceptional thermal performance, proven durability and broad applicability in the toughest conditions.

XPS 300 Sundolitt Insulation Applications – UK Construction & Civil Engineering

Sundolitt XPS 300 (300kPa) insulation boards suit 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 provide high compressive strength, superior thermal performance and moisture resistance, Sundolitt 30mm XPS 300 suits 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 02038839057 / 02038839057, email sales@insulationbee.co.uk or Live Chat - Lowest UK Insulation Prices near me.