Insulated Terrace Levelling Compound
Fire Barrier F360 Class
THERMOLOCK Terrace, Roof, and Balcony Leveling Compound is a high- performance screed material offering thermal, water, and fire insulation. It is A1-class non-combustible, F360 fire-resistant, breathable, waterproof, lightweight, and highly resistant to pressure. It is also durable against heavy rain, sunlight, and
temperature fluctuations, making it suitable for terraces, wet areas, attics, balconies, and open spaces.
Advantages
Fire resistance ≤ 360 minutes
CE-certified
High thermal insulation
High water insulation
High compression strength
Easy application
Uv and weather resistant
High acoustic insulation
Suitable for most surfaces
Lightweight structure
Application
1. The substrate should be clean, free of dust, oil, and weak particles.
2. Mix 25 kg powder with approximately 16–17 liters of clean water using a low-speed mixer.
3. Mixing 6 minutes until a homogeneous mixture is obtained.
4. Allow the mixture to rest for 2-3 minutes for better water integration.
5. Apply manually with a trowel or by machine spraying.
6. Ensure a minimum thickness of 2 cm.
7. Ceramic, stone, granite coatings can be applied after 48 hours.
8. For multilayer applications, allow the first layer to dry before applying the next.
9. Heavy loads and high-traffic areas require an additional top coating.
Areas of Application
– Terraces, rooftops, balconies and wet floors
– Houses exposed to water and humidity
– Commercial buildings, hotels and skyscrapers
– Storage and industrial areas
– The inner surfaces of the bathrooms
– Spaces needing heat, water and fire production
Expansion Joints
– Every 25 m2, an expansion joint should be added to prevent cracking.
– For larger areas, additional regional expansion joints should be used.
– Expension joints should also be filled with Thermolock terrace compound.
Applicable Surface Areas
– Concrete
– Wood
– Brick
– Metal
Drying Characteristics and Moisture Content
Initial set: 4-5 hours
Walkable: after 48 hours (light duty use)
Moisture content: after 24 hours 6-8%
Complete drying: 72 hours under standard conditions (20 C / 50% RH)
Drying speed depends on ambient temperature and ventilation.
Avoid application below +5 C or above +40 C
Traffic Readiness
Light foot traffic: 48 hours
Heavy loads or coatings: 72 hours
Primer Application
Primer use is required for surfaces other than concrete.
The product to be used as primer is Thermolock Adhesion Enhancing Transition Primer.
Please refer to the product’s technical data sheet or product documentation for its use.
Sound Insulation Performance
• Impact sound reduction (ΔLw): 25 dB (2.5 cm thickness)
• Contribution to airborne sound insulation: +4 to +6 dB
• Effective frequency absorption: 100 Hz – 5,000 Hz
• Particularly effective in the 250–1,000 Hz range (speech frequencies)
• Airborne sound improvement: 2–4 dB depending on the floor system
• Effective frequency range: 125 Hz to 4000 Hz
• Sound test procedures compliant with ISO 10140 to be planned
Storage
– Store in a dry, closed place on pallets.
– Do not stack more than 10 bags.
– When stored this way, it has a shelf life of 16 months.
Safety
Avoid contact with skin and eyes
Wear protective gloves and goggles during application.
Non-flammable and non-toxic. Classified as a non-hazardous cement-based material.
For detailed health information, please refer to the MSDS document.
Technical Specifications
| Property | Value |
|---|---|
| Color | Grey |
| Binder | Special cementitious formulation |
| Density (Bulk) | 450 ± 5% kg/m³ |
| Thermal Conductivity (λ) | 0.060 W/m·K (±10%) |
| Fire Classification | A1 Non-Combustible (EN 13501-1) |
| Fire Resistance | F360 (360 minutes) |
| Sound Insulation | Up to 56 dB (depending on system) |
| Water Vapor Permeability | High (breathable) |
| Water Resistance | Hydrophobic additives (upon request) |
| Compressive Strength | CS III (≥ 3.5 N/mm²) |
| Adhesion Strength | ≥ 0.3 N/mm² |
| Workability Time | 120 minutes |
| Drying Time | 24–48 hours (depending on layer thickness) |
| Mixing Water Requirement | 15–16 L per 20 kg bag |
| Application Thickness | 10–30 mm (per layer) |
| Consumption | 4.5–5.0 kg/m² per 10 mm layer |
| Shelf Life | 12 months in dry conditions |
| Application Temperature Range | +5 °C to +35 °C |
| Application Type | Machine or steel trowel |
| Packaging Type | 20 kg |