Green roofs
The drainage course and part of the growing medium, at the lowest saturated weight available.
Horticulture & green roof
Leca Garden 4–10
Product code ALG-0410
Washed and dust-free, for growing media and hydroponics.
Washed 4–10 mm with a neutral pH and no soluble salts; reusable after sterilisation.
- Grain size
- 4–10 mm
- Loose bulk density
- 300–380 kg/m³
Description
For hydroponic culture, potting media, surface mulch and the drainage layer beneath potting soil. Being chemically inert, it does not shift the EC of the nutrient solution.
Packaging & shipping
- Sack 50 L
- Big bag 1 m³
Standards
- EN 12580
Technical data
| Grain size | 4–10 mm |
|---|---|
| Loose bulk density | 300–380 kg/m³ |
| Particle density | 620 kg/m³ |
| Crushing resistance | 1.4 MPa |
| Thermal conductivity | 0.096 W/m·K |
| Water absorption (24 h) | 17 % |
| pH | 7 |
| Fire resistance | 1150 °C |
Values published in datasheets are typical production values within the stated tolerance band. They do not replace engineering design, mix-design trials, or the requirements of a project specification.
Applications
Horticulture & hydroponics
An inert, disease-free and reusable growing medium.
Related grades
Horticulture & green roof
Leca Green Roof 8–16
The green roof drainage layer: light and frost-stable.
- Grain size
- 8–16 mm
- Loose bulk density
- 280–340 kg/m³
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