SWISS SUBSTRAT
TOITVERT.CH is developing the first extensive local 100% substrate.
THE FIRST SUBCONTRACT 100%
LOCAL!
Substrate from 100 % of local raw materials 3/8 mm crushed tile (Corcelles-sous-Payerne, VD) and fibrous agricultural compost (Lavigny, VD). This substrate is formulated in accordance with the requirements of standard SIA 312:2010, which defines the minimum mechanical, hydric and physical characteristics for extensive green roofs.
Grain size in accordance with SIA 312:2010 The mineral fraction has a continuous particle size distribution, mainly between 2 mm and 12 mm. The proportion of fines (< 0.063 mm) is less than 5 % by dry mass, which guarantees good permeability and prevents clogging of the drainage layers.
Its light, porous mineral base ensures infiltration and storage of rainwater, while the organic fraction provides long-lasting water retention and microbial activity.
Mixture brewed and sieved in Luins (VD) - logistical radius ≤ 100 km.
SWISS Sedum - Varieties and Prices
Substrate for urban greening - Origin 100% VD
Mineral mat: 100%
Organic material: 0%
Minimum order subject to quotation
Substrate for urban greening - Origin 100% VD
Mineral mat: 85%
Organic material: 15%
Minimum order subject to quotation
Substrate for urban greening - Origin 100% VD
Mineral mat: 70%
Organic material: 30%
Minimum order subject to quotation
EXTENSIVE SUBSTRATE SWISS SUBSTRAT
Growing medium developed in accordance with SIA standard 312 - Lightweight organic mineral substrate for extensive roofs. It is also recommended for planting Mediterranean perennials in poor soil.
Composition
|
Fraction |
Material |
|---|---|
|
Mineral |
Crushed roof tile (Corcelles-sous-Payerne) |
|
Organic |
Fibrous compost (Lavigny) |
Origin of components
|
Component |
Source |
|---|---|
|
Crushed tile |
Corcelles-sous-Payerne (VD) |
|
Fibrous compost |
Lavigny (VD) |
Chemical characteristics (average analyses - in accordance with SIA 312)
|
Parameter |
SIA target value |
|---|---|
|
pH (H₂O) |
5.5 - 8.5 |
|
Conductivity (1/1.5) |
≤ 3.5 mS/cm |
|
Dry matter / crude |
> 40 % |
|
Organic matter / crude |
< 65 % |
|
Density at CME |
< 1’200 g/l |
|
CEN density |
– |
Physical characteristics in accordance with SIA 312
|
Parameter |
SIA target value |
|---|---|
|
Total porosity |
≥ 45 % |
|
Water at pF 1 |
– |
|
Air at pF 1 |
≥ 10 % |
|
Useful macroporosity (LK) |
≥ 20 % |
|
Useful water retention capacity (nFK) |
≥ 20 % |
|
Total volume of water available (rVK) |
≥ 45 % |
Uncompacted density
|
Status |
Density (kg / m³) |
|---|---|
|
Dry MVA |
± 1 050 |
|
MVA stock |
± 1 100 |
|
Saturated MVA (water) |
± 1 400 |
Surface weight of the complex (SIA 312, base 10 cm)
|
Thickness (cm) |
8 |
|---|---|
|
Weight stock (kg / m²) |
88 |
|
Weight saturated (kg / m²) |
112 |
Useful water retention capacity (nFK)
|
Thickness (cm) |
8 |
|---|---|
|
Available water (L / m²) |
43 |
Packaging & logistics
- Bulk (tipper or blower truck)
- Big-Bag 1 m³ (≈ 1 300 L)
Our other products
SWISS SEDUM
TOIT VERT grows the first native sedums to be sold without pots. They are packaged in boxes, which saves time during installation and reduces waste.
SWISS CAISSETTE
TOIT VERT is proud to have developed Switzerland's 1ᵉʳ pre-cultivated planter using 100% local raw materials. This all-in-one module system allows for sustainable greening and provides water retention at saturation of 33LT/m2.