• Exceptional Insulation: Diathonite Thermostep.047 is highly breathable, providing excellent thermal insulation against both heat and cold, enhancing energy efficiency in buildings.
• Versatile Application: Suitable for indoor and outdoor use, it can be directly tiled or coated after proper waterproofing, making it ideal for various architectural needs.
• Lightweight Yet Durable: Despite its lightweight composition, this screed is reinforced with fibers, offering exceptional resistance and durability over time.
• Eco-Friendly Composition: Made from natural materials, Diathonite Thermostep.047 supports sustainable building practices and contributes to LEED credits for environmentally conscious projects.
• Safety and Compliance: With a Euroclass A1 fire rating and CE marking, this screed ensures high safety standards and compliance with European regulations.

What is Diathonite Thermostep.047 used for?
It's designed for high-performance thermal insulation in floors, ceilings, and energy-efficient buildings. Ideal for new construction and retrofits.

How does it compare to other insulating plasters?
It has an ultra-low thermal conductivity (λ = 0.047 W/mK), making it one of the most thermally efficient plasters in the Diathonite line.

Can it be used on ceilings?
Yes — but apply in layers no thicker than 2.0 cm per layer, with a maximum of 3.0 cm overall.

Do I need a primer?
It depends on the substrate.
Use Aquabond on smooth, non-absorbent surfaces (e.g., concrete, painted walls, plasterboard).
Not needed on absorbent masonry (brick, stone, old plaster).

How is it installed?
By hand trowel or spray machine. We recommend professional installation for large or structural applications.

Is it fire-resistant?
Yes — classified as A1 (non-combustible) under EN 13501-1.

Can I paint over it?
Yes — once cured, it can be painted with mineral or lime-based paints.

Package: 18 kg (40 lbs)

Coverage: 4.74 kg/m² (51.3 lbs/ft²) (±20%) per cm of thickness.

Per Package: 4.73 m² (51.28 ft²)

• Brick (natural/painted)
• Cement Board
• Concrete/cement
• Drywall
• Plywood
• Fiberboard
• Hardie Board
• Metal
• Stucco/Plaster
• Stone Veneer
• Tile
• Wood Panelling
• Wood Siding