Extensive Green Roofing Substrate (25kg) Covers 0.22 to 0.57 sq.m

Extensive Green Roofing Substrate is a low maintenance soil that can be used with Sedum and Wildflower living roofs.

The substrate will settle 10% so allow extra - our coverage details below give approximate coverage with settling.

Sizes range from 16mm to 4mm
PH Value - Average 8.4
Maximum Water Holding Capacity: 30%

Also available in 1cu.m bags

Features of the Substrate

• Thickness for Sedum Roofs - 40 to 75mm (40mm Minimum)
• Thickness for Wildflower Roofs - 75mm to 100mm (75mm Minimum)
• Full Saturated Weight - 40mm to 58kg per sq.m
• Full Saturated Weight - 50mm to 72.5kg per sq.m
• Full Saturated Weight - 70m to 102kg per sq.m
• Full Saturated Weight - 75mm to 109kg per sq.m
• Full Saturated Weight - 100mm to 145kg per sq.m

Coverage (inc 10% settlement)

• 40mm thick - 0.57 sq.m
• 50mm thick - 0.45 sq.m
• 70mm thick - 0.33 sq.m
• 75mm thick - 0.30 sq.m
• 100mm thick - 0.22 sq.m