Diathonite Thermactive.037

• BREEAM Exemplary Level, Eurofins tested
• Thermal lag up to 12 hours
• 71% porosity holds the insulating air (ISO 15901-1)
• Rated as an EIFS: a full exterior insulation system in one material
• Masonry mortar class M 2.5

Package: 15 kg (33.7 lbs)

Coverage / Yield:
• 2.6 kg/m² per 10 mm of thickness (±20%)
• 1.35 lb/ft² per inch of thickness (±20%)

Application Range:
Minimum 15 mm (0.6 in)
Maximum per layer 40 mm (1.6 in)

Yield per 15 kg (33 lb) package:
• At 15 mm thickness: ≈ 3.8 m² (≈ 41 ft²)
• At 20 mm thickness: ≈ 2.9 m² (≈ 31 ft²)
• At 40 mm thickness (max per layer): ≈ 1.4 m² (≈ 15 ft²)

What is Diathonite Thermactive.037 used for?
It's designed for ultra-high thermal insulation in residential, commercial, and historic buildings. Ideal for walls, ceilings, and energy-efficient renovations.

How does it compare to other insulating plasters?
It has the lowest thermal conductivity (λ = 0.037 W/mK) in the Diathonite line — making it the most thermally efficient.

How thick should it be applied?
Typically 15–40 mm, depending on structural and insulation needs. Can be applied in multiple layers.

Can it be used on exterior walls?
Yes — but it must be protected with a compatible topcoat like Argacem or Decork Design.

Is it suitable for heritage buildings?
Yes — its breathability makes it perfect for historic masonry that needs to "breathe" to prevent damage.

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

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 projects.

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