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Green-tree Lightweight Roof Garden Subsoil is a specially engineered blend of lightweight aggregate and washed silica sand, designed to deliver superior drainage and aeration while minimizing structural load. Ideal for rooftop installations with strict weight limits, this UK-manufactured subsoil complements Green-tree’s Intensive and Podium Deck Roof Garden substrates, ensuring healthy root development and optimal plant growth.
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Green-tree's Lightweight Roof Garden Subsoil is a specially engineered blend designed to complement and work in conjunction with our Intensive and Podium Deck Roof Garden substrates. This subsoil consists of lightweight aggregate and specially selected washed silica sand, sourced specifically to provide optimal drainage properties and good levels of aeration. Its lightweight nature makes it ideal for rooftop installations where weight restrictions are a concern. Manufactured in the UK, this subsoil ensures quality and consistency for your green roof projects.
Features & Benefits:
Lightweight Composition: Facilitates easy handling and installation, reducing structural load on rooftops.
High-Quality Ingredients: Incorporates lightweight aggregate and washed silica sand for optimal performance.
Optimal Drainage Properties: Ensures efficient water movement, preventing waterlogging and promoting healthy plant growth.
Good Levels of Aeration: Provides necessary oxygen to plant roots, enhancing root development and overall plant health.
UK Manufactured: Produced in the UK, ensuring consistent quality and nationwide availability.
Areas of Application:
Intensive Roof Gardens: Supports deeper planting schemes with trees and shrubs.
Podium Roof Gardens: Ideal for urban developments requiring green spaces on podium decks.
Urban Regeneration Projects: Enhances green infrastructure in city landscapes.
Landscape Architecture: Provides a reliable subsoil layer for various landscaping designs.
Tree Pits: Suitable as a base layer in tree planting schemes within urban environments.
Technical Specifications:
pH Level: 6.7
Total Porosity: 40%
Saturated Hydraulic Conductivity: 720mm/hr
Composition: Blend of lightweight aggregate and washed silica sand
Compliance: Designed to complement BS8616:2019 compliant substrates
Delivery Options:
Bulk Bags: Suitable for medium to large-scale installations.
Loose Loads: Available for extensive projects; delivery charges vary based on load size and location.
pH Level | 6.7
Total Porosity | 40%
Saturated Hydraulic Conductivity | 720 mm/hr
Composition | Lightweight aggregate and washed silica sand blend
Compliance | Compatible with BS8616:2019 substrate standards
Packaging & Delivery | Available in bulk bags and loose loads; delivery charges vary by order size and location
