ThermaBarr Slab are rigid thermal insulation boards with Stoneglass or Cart 90 facings on both sides and a polyurethane (PU) foam core. They can be used as insulation in horizontal and vertical building elements, externally and internally, across all building types.
ThermaBarr Slab
Key benefits
- excellent thermal insulation performance, U-value
- very good compressive strength
- CFC- and HCFC-free
Manufactured with
- effective width 1,150 mm
- nominal thickness from 30 mm to 100 mm
- bespoke lengths from 2 m to 8 m, depending on project requirements
Technical characteristics
Technical specifications
Nominal thickness (mm)
Weight – W 1,150 mm (kg/running m)
Thermal transmittance U & RD (m²·K/W)
Nominal thickness (mm)
30
Weight – W 1,150 mm (kg/running m)
1,40
Thermal transmittance U & RD (m²·K/W)
(0,76) 1,30Nominal thickness (mm)
50
Weight – W 1,150 mm (kg/running m)
2,30
Thermal transmittance U & RD (m²·K/W)
(0,46) 2,15Nominal thickness (mm)
80
Weight – W 1,150 mm (kg/running m)
3,70
Thermal transmittance U & RD (m²·K/W)
(0,29) 3,45Nominal thickness (mm)
100
Weight – W 1,150 mm (kg/running m)
4,60
Thermal transmittance U & RD (m²·K/W)
(0,23) 4,35*Foam weight and thermal performance were calculated taking into account:
Core density 40 kg/m³
Thermal conductivity 0.023 W/m·K
Nominal board thickness
(Standards EN 13165, EN 12667 and EN 12939)
- Stoneglass facing (EN 11925)
Colour: White
Class: E (fire performance)
Waterproof with additives that protect against mould and algae
Suitable for most types of render systems
Rough surface that improves adhesion
- Cart 90 facing
Colour: Black
Bituminous for additional waterproofing
Waterproof with additives that protect against mould and algae
Ribbed surface for anti-slip protection and improved adhesion
Lightweight and resistant to mechanical stress and low temperatures
- Fibre-glass-reinforced polyester resin sheet
Nominal thickness: from 0.40 mm to 0.50 mm
Roll width: 1,010 mm
Surface resistant to chemical and bacterial agents
Surface resistant to UV radiation
Resistant to contact with urea and ammonia
Reaction to fire: F-s2-d0
Colour: Opal White
Polyurethane (PU) foam core (EN 13165)
Category: F
Density: 35 to 42 kg/m³
Mechanical strength suitable for building insulation applications, able to withstand external pressures. Despite its density, it remains lightweight, supporting easier handling and installation.
Thermal conductivity (λ): 0.021 to 0.023 W/mK
Low thermal conductivity provides excellent insulation, reducing heat losses and supporting energy efficiency.
Closed-cell structure: 90%
A high closed-cell ratio ensures low moisture absorption and increased resistance to corrosion and wear, making it suitable for humid or harsh weather environments.
Sound insulation: due to its density, it also offers good acoustic performance.
Service life: useful service life 30 years
Environmental profile: CFC- and HCFC-free
Contains no substances hazardous to health and is manufactured using materials that comply with environmental standards.
Available Options
Connection / fixing options
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These boards are not load-bearing or self-supporting structural elements, but fully supported insulation elements. They do not carry loads and cannot resist loads (bending, shear). Although their compressive strength under a uniformly distributed load reaches 150 kN/m², their bending strength does not exceed 15 kN/m².
They are fixed to the load-bearing elements either with adhesive (glue) or with anchors (plastic or metal).
In all cases, at the joint between boards, the use of a sealing material is recommended (typically low-expansion polyurethane foam) to seal the construction.
Applications
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They are used for energy upgrades to buildings, contributing substantially to energy savings.
They reduce heat losses and help cut CO₂ emissions, improving the environmental performance of the building envelope.
One of their key applications is floor insulation for cold rooms, where stable thermal performance and high compressive strength are required.
