EPS 35kg/m³
Insutech EPS 35 is a white, premium-density expanded polystyrene foam sheet at a nominal density of 35 kg/m³, representing the highest performance grade in Insutech’s EPS sheet range.
Engineered for the job it protects.
Insutech EPS 35 is a white, premium-density expanded polystyrene foam sheet at a nominal density of 35 kg/m³, representing the highest performance grade in Insutech’s EPS sheet range. Precision-manufactured through injection moulding and precision block cutting, Insutech EPS 35 is engineered for applications demanding the utmost in mechanical strength and insulating capability, including industrial cold-store floors, heavy-load flat roofs, and high-specification building envelopes.
With the lowest thermal conductivity in the EPS range at ≤ 0.032 W/mK and compressive strength of ≥ 250 kPa, Insutech EPS 35 delivers maximum thermal resistance alongside exceptional structural performance. This combination minimises heat loss to a best-in-class level, maximises energy efficiency, and provides the greatest long-term savings in energy costs — making it the preferred choice for the most technically demanding, energy-conscious construction projects.
Board thickness: Available in 20 mm – 100 mm and can also be customized.
- Best-in-class thermal insulation with ≤ 0.032 W/mK thermal conductivity
- Maximum reduction in electricity consumption and energy costs
- Reduces CO₂ emissions through best-in-class insulating performance
- Highest compressive strength of ≥ 250 kPa in the EPS range
- Engineered for industrial cold stores and high-spec building envelopes
- Excellent resistance to moisture, chemicals, and extreme loads
- Dimensionally stable under the most demanding service conditions
Technical Data
| Property | Code | Test Method | Unit | Result |
|---|---|---|---|---|
| Density | kg/m3 | 35 ± 5% | ||
| Thermal Conductivity | λD | EN 12667 | W/mK | 0.032 W/mK |
| Thermal Resistance (30 mm) | RD | EN 12667 | (m²K)/W | 0.94 |
| Thermal Resistance (40 mm) | RD | EN 12667 | (m²K)/W | 1.25 |
| Thermal Resistance (50 mm) | RD | EN 12667 | (m²K)/W | 1.56 |
| Thermal Resistance (60 mm) | RD | EN 12667 | (m²K)/W | 1.87 |
| Compressive Stress | CS(10/Y) | EN 826 | kPa | ≥ 250 kPa |
| Tensile Strength | TR | EN 1607 | kPa | ≥ 250 kPa |
| Bending Strength | BS | EN 12089 | kPa | ≥ 350 kPa |
| Dimensional Stability | DS(70)3 | EN 1604 | % | ≤ 3 |
| Specific Heat | EN 12524 | J/(kgK) | 1450 | |
| Water Vapour Diffusion | MU | EN 12086 | μ | 40–100 |
| Water Absorption (Immersion) | WL(T) | EN 12087 | % vol | ≤ 3 |
| Water Absorption (Diffusion) | WD(V) | EN 12088 | % vol | ≤ 3 |
| Max. Service Temperature | °C | 75 | ||
| Fire Rating | EN 13501-1 | Euroclass | E |
*Insutech reserves the right to modify product specifications, descriptions, and technical information at any time without prior notice.
Application, Step by Step.
Remove dust, grease and loose particles from the substrate so the insulation boards can sit completely flush against the prepared surface.
Measure carefully and cut the boards to size with a sharp blade or hot wire, keeping the edges square for tight and accurate joints.
Apply a compatible adhesive or fix mechanical fasteners appropriate to the substrate, following the specified coverage and spacing.
Position each board and press it firmly into place, butting boards tightly together and staggering the joints between rows for stability.
Close all joints and gaps with compatible tape or filler so the insulation layer forms one continuous, unbroken thermal envelope.
Apply the specified screed, render or cladding over the boards to protect the insulation and complete the build-up as designed.
