Calcareous Substrate in 25ltr Sacks
SKY GARDEN CALACEROUS SUBSTRATE A free draining, low nutrient and moisture retentive growing medium made from organic compost, chalk and lightweight aggregate in line with the UK Green Roof Code of best practice. Testing conforms within the BS8616:2019 green roof substrate testing methods and was completed by STRI.
Read More£4 Per bag
(Excl. VAT £0.80)
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• A free draining substrate suitable for use on Extensive Roof Systems for chalk grassland species.
• Minimum recommended depth: 80-150 mm
• Free draining when saturated
• Allows root penetration
• Recycled content
• Organic material PAS100 certifieAll testing of Sky Garden Ltd Substrate was completed by Sports Turf Research Institute under the BS8616:2019
Specification for Performance Parameters and Test Methods for Green Roof Substrates. A specially blended mix of free
draining organic material with clean and screened aggregates, recycled from certifiable waste products from the building
industry to provide a low nutrient water retentive growing medium.60%Recycled Materials
LightweightUK Green Roof Code of Best Practise
Free-drainingOrganic Material
Low NutrientBS8616 standards by STRI Groups.
Moisture retentiveGrowing Medium
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Physical Properties Substrate Depth Recommend depth 80 – 150mm Physical Properties Bulk Density when oven dried 0.080g cm 3 (1080 kg/m3 Physical Properties Bulk Density at field capacity 1.1310 g cm 3 (1310 kg/m3 Physical Properties Field Capacity 23.7% v/v Technical Properties Organic matter (% weight) 2.5% Technical Properties pH 9.1 Technical Properties Electrical Conductivity (mS cm 1Organic matter (% weight) 2.29 mS cm 1 Technical Properties phosphate (mgl 1 248 mgl 1 Technical Properties Potassium (mg l 1 680 mgl 1 Technical Properties Total nitrogen (%) 0.77% -
- All your materials arrive in one delivery from our UK farm and are simple to unload and install straight away.Supplied in 25ltr sacks
