Structural Insulation Board EPS – 20–40 mm
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Structural Insulation Board EPS – 20–40 mm

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7 reviews
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€79.00
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High-density structural EPS insulation board for thermally separating and supporting window, door, façade and steel construction details.
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Eoin G.
Dublin 16,
Ireland
02.06.2026
Good product. Exactly what I need at threshold for front and back door. Speedy delivery
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Structural Insulation Board EPS – 20–40 mm
Home/Store/Structural Insulation Products
Product Details
DESCRIPTION

High-density structural insulation board for demanding construction details

The blaugelb Insulation Panel EPS is a high-density expanded polystyrene insulation board developed for construction details where thermal insulation must be combined with high pressure resistance, dimensional stability and good fixing performance.

It is particularly suitable around windows, doors and façades, as well as for thermally separating steel, concrete and other construction elements that would otherwise create significant thermal bridges.

The board can also be used as an additional build-up layer with TRIOTHERM+ Door Upstands where wider door or sliding-door frame profiles require a greater support width.

With a thermal conductivity λ10 of 0.0403 W/(m·K), very low water absorption and high compressive strength, the board provides a durable solution for thermally demanding details in new-build and renovation projects.

The panels are easy to cut and machine on site and are available in 20, 30, 35 and 40 mm thicknesses, each measuring 600 x 1,200 mm.

PRODUCT BENEFITS

  • High-density EPS structural insulation board
  • Combines thermal insulation with high pressure resistance
  • Suitable for demanding window, door and façade connection details
  • Can be used to increase the support width of TRIOTHERM+ Door Upstands for wider frame profiles
  • Useful for thermal separation around steel girders and concrete supports
  • High inherent stability and flexural strength
  • High screw withdrawal values
  • Very low water absorption
  • Insensitive to moisture
  • Mould-proof and resistant to rot
  • Very high dimensional stability
  • Easy to cut accurately using common woodworking tools
  • Low weight and easy to process on site
  • Produces very little dust when cut
  • 100% recyclable
  • Free from HCFCs, HFCs and HBCDs
  • Independently verified Environmental Product Declaration (EPD)
  • EMICODE EC1 Plus – very low emissions
APPLICATION

Typical applications

The blaugelb Insulation Panel EPS is designed for areas where conventional insulation materials may not provide sufficient pressure resistance, dimensional stability or fixing strength.

Typical applications include:

  • Thermal insulation around windows and façades
  • Window and door connection details
  • Widening TRIOTHERM+ Door Upstands to suit wider door and sliding-door frame profiles
  • Thermal separation around steel girders and concrete supports
  • Thermal insulation in wood-aluminium, aluminium and PVC constructions
  • Load-resistant jamb extensions and connection details
  • Substructures around heavy lift-and-slide door systems
  • Roller shutter, Venetian blind and external blind constructions
  • Custom structural insulation and thermal separation details

Widening TRIOTHERM+ Door Upstands

Where a door, entrance-door or lift-and-slide frame is wider than the standard TRIOTHERM+ Door Upstand, the Insulation Panel EPS can be cut into strips and used as an additional build-up layer to increase the available support width.

This allows wider frame profiles to be supported across a broader surface while maintaining a continuous thermally insulating construction at the threshold.

The insulation board is used in combination with the load-bearing TRIOTHERM+ Door Upstand and should be securely bonded or fixed in accordance with the required construction detail.

This application is different from using a thin insulation panel on its own to bridge a cavity: the TRIOTHERM+ Door Upstand provides the primary structural support, while the insulation board is used to extend the support width to suit the frame geometry.

Application limitation

The 20–40 mm Insulation Panels are not intended to provide load-bearing support across a cavity beneath windows or doors when used on their own.

For structural bridging of cavities and similar load-bearing applications, a material thickness of at least 60 mm is recommended. For these applications, use the MULTIPRO Board in the appropriate thickness.

Cutting and processing

The panels can be cut and shaped easily using common woodworking tools, including a hand saw, jigsaw, mitre saw or circular / skill saw.

For clean and accurate cuts, use a suitable coarse-cut blade appropriate for the selected tool.

The high-density EPS material is easy to machine and produces relatively little dust during processing.

Fixing and bonding

Depending on the construction detail and substrate, the insulation panels can be mechanically fixed or bonded.

The manufacturer specifically identifies Power FIX hybrid polymer adhesive as a suitable option for bonding the insulation panels, including applications such as thermal separation on steel girders.

The fixing or bonding method must always be selected to suit the substrate, intended loads and specific construction detail.

Material compatibility

The panels are compatible with common construction materials but must not come into contact with solvents, solvent-containing materials or other substances that are incompatible with polystyrene.

TECHNICAL DATA
Property Value
Material High-density EPS (expanded polystyrene), high ductility
Colour Grey
Panel dimensions 600 x 1,200 mm
Available thicknesses 20 / 30 / 35 / 40 mm
Thermal conductivity λ10 0.0403 W/(m·K)
Compressive load-bearing capacity at max. 2% total deformation 1,260 kg/dm²
Compression stress at 2% compression ≥ 1,435 kPa
Bending strength ≥ 2,190 kPa
Shear strength 0.217 N/mm²
Air permeability Class 4
Water vapour diffusion resistance μ 228
Water absorption after 28 days under water ≤ 0.5 vol.%
Fire behaviour B2 / Class E
Airborne sound insulation – 30 mm Rw 28.0 dB ± 1.2 dB
Airborne sound insulation – 40 mm Rw 28.5 dB ± 1.2 dB
Dimensional strength Short-term up to +95°C / Long-term up to +85°C
Dimensional stability Very high, including outdoor weathering
Screw withdrawal value – FK-T30 7.5 x 42 mm FRK AZ 1,200 N
Screw withdrawal value – window sill screw 4.5 x 35 mm FRK AZ 510 N
Moisture / ageing resistance Moisture resistant, mould-proof and does not rot
Emission classification EMICODE EC1 Plus
DOWNLOADS

Insulation Panel EPS – Technical Data Sheet
Official blaugelb / Meesenburg technical data and product specifications.

Download Technical Data Sheet (PDF)

Environmental Product Declaration (EPD)
Independently verified environmental product information for the blaugelb Insulation Panel EPS.

Download Environmental Product Declaration (PDF)

EMICODE EC1 Plus Certificate
Official low-emission classification for the blaugelb Insulation Panel EPS.

Download EMICODE EC1 Plus Certificate (PDF)

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