Intensive Green Roofs

An intensive green roof is a deep, heavy, accessible "roof garden" that supports diverse, large plants like shrubs, trees, lawns, and flowers, requiring significant structural support, deep growing media (20cm-1m+), and regular maintenance (irrigation, pruning) to create a functional, park-like space, unlike lighter, low-maintenance extensive roofs.
Plant Life: Supports large vegetation, including trees, shrubs, lawns, perennials, and even vegetable gardens.

Substrate Depth: Deep growing medium (20cm to over 100cm) to support extensive root systems.

Weight & Structure: Heavy; requires robust structural support designed to bear significant loads.

Accessibility & Use: Often publicly accessible, designed as recreational spaces, parks, or amenity areas.

Maintenance: High maintenance, needing regular irrigation, fertilization, and upkeep, similar to a ground-level garden.