The new quality mark is a fact! The certification project for RAG Green Roof has been gone through successfully. Up until now ECAS as independent certifier has successfully rounded off the certification-audit for RAG Green Roof at Jiffy Products International. RAG Green Roof is granted by RHP.
Click here to download the RAG Green Roof certificate in Dutch and in English.
Jiffy RAG Green Roof substrates guarantees:
• Independent chain control raw materials (at least once a year).
• Up-to-the-minute analysis results.
• Controlled physical product properties (among others optimum air- and water balance, good water permeability, not dusty).
• Basis for good and healthy growth trees and plants.
• Excluding risks (balance in water retaining capacity and water drainage).
• Falls in with Soil Quality Provisions.
|
Physical properties |
Intensive | Extensive | Advantages |
| Apparent density (volume weight) at maximum water capacity | 980 KG/M3 | 960 KG/M3 | Low structural loading conform acceptable rooting layer |
| Apparent density (volume weight) when dry | 440 KG/M3 | 430 KG/M3 | Large moisture capacity at low weight |
| Maximum water buffer /water capacity | 50-55% | 50/55% | Large water buffering capacity |
| Water permeability | 15-20 MM/Minute | 25/35 MM/Minute | Effective drainage of excess rain water |
| Homogeneous | >80% 2-8 MM | >80% 2-8 MM | Ideal for rooting |
| Total pore volume | >80% | >80% | High porosity increases water buffer |
| Air volume at maximum water capacity | >25% | >25% | Air filled porosity even at water capacity |
| Chemical properties | |||
| pH | 5-7,0 (Project dependable) | 5-7,0 (Project dependable) | Optimum control ability |
| EC | 15 MS/M Increased nourishment possible according agreed upon | 15MS/m Increased nourishment possible according agreed upon | Excellent buffering of nutrients |
Benefit from Jiffy's experience in the production and supply of substrate for roof gardens. Our very successful ‘Green Roof’ substrates comply with all requirements applying to this specialist application.
Product Manager Green Roof
Lars Tolenaars
Tel.: +31 168 41 35 00
E-mail: l.tolenaars@jiffygroup.com
