MCM Extensive Green Roof Substrate is a lightweight soil blend made from 10mm graded PAS 100 compost, 8–14mm expanded clay aggregate, and mulched wood fines. Designed for low-maintenance green roofs and sedum planting, it has low organic content, high porosity, and balanced particle size for effective drainage and plant support.

  • Lightweight substrate blend for extensive green roofs and sedum planting
  • Low organic content supports low-maintenance, drought-tolerant planting
  • High porosity aids drainage and root aeration
  • Consistent particle size distribution for stable installation
  • Suitable for use at 5–14cm thickness
  • Supplied in bulk bags or loose loads for flexible delivery

Applications

  • Extensive green roofs
  • Sedum and succulent planting
  • Low-maintenance roof gardens
  • Lightweight landscaping projects

Dimensions

Recommended substrate thickness: 5–14cm

Materials

10mm graded PAS 100 compost

8–14mm expanded clay lightweight aggregate

Mulched wood fines