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Diathonite Screed Sale
Breathable, cork-based floor screed for thermal & acoustic insulation. Ideal for concrete slabs, foam glass, and floating floors. LEED-compliant. Free shipping in Canada.
From $236.48 CAD
Buy Diathonite Screed from $236.48 CAD
Sustainable, Fibre-Reinforced Screed for Energy and Sound Control
Diathonite Screed is a fiber-reinforced, eco-friendly, breathable screed composed of natural materials such as cork, natural hydraulic lime, clay, and diatomaceous earth. Designed for thermal and acoustic insulation, it’s ideal for both internal and external floor applications. Diathonite Screed provides excellent thermal efficiency by insulating floors against temperature variations, and its breathability ensures resistance to mold and moisture. Highly workable, it can be applied by hand or with a plastering machine, and it offers great durability for use on concrete slabs, foam glass aggregates, and other surfaces. This product is perfect for increasing the comfort and energy efficiency of homes and commercial buildings.
Weight: 25 kg
For additional inquiries, please submit our Contact form.
- Thermal and acoustic insulation in one system
- Breathable and vapor-permeable — prevents moisture buildup
- Lightweight and easy to apply
- Fire-resistant (Euroclass A1)
- Contributes to LEED, WELL, and BREEAM credits
- Suitable for floating floors and radiant heating systems
- Enhances indoor comfort and air quality
- Can be applied over radiant heating pipes
- Ideal for historic and modern buildings
Colour: Grey
Yield (±10%): 6.00 kg/m² per cm of thickness (3.12 lb/ft² per inch of thickness )
Minimum Thickness(±10%): 4.0 cm
Maximum Thickness/layer: 5-6 cm
Grain Size(±10%): 0 – 3 mm (0 – 0.12 in)
Density(±10%): 600 kg/m³ (37.46 lb/ft³)
Water/Cement Ratio: 1 – 12.5 L per 25 kg bag (2.91 – 3.30 U.S. gal per 55.1 lb bag)
Application Temperature: +5 / +30 °C (+41 / +86 °F)
Drying Time (T=23°C / 73.4°F; R.H. 50%: Thickness of 5 cm / 1.97 in: 28 days
Thermal Conductivity (λ): 0.060 W/mK (EN 12667)
Thermal Resistance for 1 cm Thickness: 0.167 m²K/W (EN 12667)
Specific Heat (c): 1000 J/kgK (0.239 kcal/kg°C)(EN 1745 / EN 10456)
Impact Sound Attenuation (ΔLw): 22 dB (for a system composed of Diafon + Diathonite Screed at 5.0 cm / 1.96 in) (EN ISO 717-2)
Footstep Insulation Index: L’nw = 58 dB (for a system of Diathonite Screed + Diafon + hollow-core concrete floor) (EN ISO 140-7 / DPCM 05.12.1997)
Packaging: Paper Bag
Weight:25 kg (55.10 lb)
What is Diathonite Screed used for?
It's designed for thermal and acoustic floor insulation in residential, commercial, and public buildings. Ideal for concrete slabs and floating floor systems.
Can it be used with radiant heating?
Yes — Diathonite Screed is compatible with radiant heating systems and helps distribute heat evenly.
How thick should it be applied?
Minimum 4.0 cm. Maximum 5–6 cm per layer. Can be applied in multiple layers if needed.
Do I need a primer?
It depends on the substrate.
Use Aquabond on smooth, non-absorbent surfaces (e.g., concrete, foam glass, wood).
Not needed on absorbent or rough substrates.
How is it installed?
By hand trowel or spray machine. We recommend professional installation for large projects.
Is it fire-resistant?
Yes — classified as A1 (non-combustible) under EN 13501-1.
Can I walk on it immediately after application?
No — allow 5–7 days of curing before foot traffic or finishing.
Can I paint over it?
Yes — once cured, it can be painted with mineral or lime-based paints.
Package: 25 kg (33.7 lbs)
Coverage (±10%): 6 kg/m² per cm of thickness (3.12 lb/ft² per inch of thickness )
Per Package: 4.16 m² (44.7 ft²)
Questions? Contact us for answers!


