This guide highlights top root barrier products ideal for green roofs and other elevated landscapes. Each option helps protect substrates, membranes, and drainage layers from intrusive tree roots while enabling healthy growth above. Below you’ll find a quick product overview and detailed sections for five recommended barriers.
| Product | Depth | Width | Panels/Feet | Notes |
|---|---|---|---|---|
| DeepRoot Tree Root Barrier, 24″ Deep | 24 inches | 24 inches | 40 linear feet (20 panels) | Durable, double-top edge, UV inhibitors |
| DeepRoot Root Barrier Kit, 18″ Depth | 18 inches | 24 inches | 5 panels pack | 90° vertical ribs, zip joiner system |
| Sidewalk Shield, 36″ Depth | 36 inches | Not specified | 25 feet | Heavy duty, 100 mil thickness |
| DeepRoot Tree Root Barrier, 12″ Depth | 12 inches | 24 inches | 80 linear feet | Durable, double-top edge, UV inhibitors |
Note: All products listed are root barriers designed to redirect roots away from hardscapes, typically used around sidewalks, driveways, patios, and garden beds. Durability, ease of installation, and UV resistance are important factors for green roof applications where exposure and weathering are considerations.
DeepRoot Tree Root Barrier, 24″ Deep (20 Panels)
- ROOT INTRUSION SOLUTION: Redirects roots down and away from hardscapes to prevent damage and preserve landscape beauty.
- PACK AND SIZE: 20 panels, 24″ depth, 24″ width; totals 40 linear feet per pack.
- DURABLE CONSTRUCTION: Made in the USA from 90% reprocessed polypropylene; patented mechanical guide for reliability.
- SAFETY FEATURES: Rounded edges for safe handling; double-top edge for strength and root overgrowth protection.
- UV PROTECTION: Ultraviolet inhibitors enhance long-term durability in sun exposure.
For green roofs facing significant root challenges, this DeepRoot barrier provides robust depth and a sturdy design to contain roots while maintaining installation safety and longevity. Its broad 24″ width and 40 linear feet per pack offer coverage for medium-sized installations.
DeepRoot Tree Root Barrier Kit, 18″ Depth (5 Panels)
- VERSATILE KIT: 5 panels, each 18″ deep x 24″ wide; suitable for 5–15 gallon trees.
- 90° VERTICAL RIBS: Guides roots downward, away from hardscapes to reduce damage.
- EZ ASSEMBLY: Zipper joining system enables fast and easy setup.
- CONSTRUCTION QUALITY: 90% reprocessed polypropylene; durable and long-lasting with a protective edge.
Ideal for installations where a moderate barrier depth is sufficient, this kit balances ease of use with effective root control for smaller trees on elevated substrates and planters on green roofs.
Sidewalk Shield, 36″ Depth, 25 Feet
- EXTENDED DEPTH: 36 inches deep; 25 feet in length; strong protection for larger root systems.
- HEAVY DUTY: 100 mil thickness provides robust barrier against root intrusion.
- WIDE APPLICATIONS: Protects sidewalks, roads, driveways, septic systems, and more from tree roots.
This option is well-suited for mature trees where deeper rooting patterns are prevalent, offering substantial depth and robust material for long-term green roof and adjacent hardscape protection.
DeepRoot Tree Root Barrier, 12″ Depth (40 Panels)
- ROOT INTRUSION SOLUTION: Directs roots away from hardscapes; pack includes 40 panels totaling 80 linear feet.
- DURABLE AND LONG-LASTING: USA-made from 90% reprocessed polypropylene; rugged construction with a patented guide.
- SAFE DESIGN: Double-top edge and rounded handling edges for safety and durability; UV inhibitors for extended life.
The 12″ depth variant is a practical choice for shallow planters or rooftop gardens where a moderate barrier is required without adding excessive bulk to the installation.
Buying Guide: Key Purchase Considerations For Green Roof Root Barriers
When selecting a root barrier for green roof applications, consider depth, width, material durability, ease of installation, and environmental exposure. Below are factors to help compare options across brands and models.
- Depth and coverage: Deeper barriers deter aggressive root growth and protect underlying layers; choose depth based on tree size and rooting patterns. Panels per pack and total linear feet affect total coverage and must align with your roof plan.
- Material and durability: Look for UV-stabilized, high-quality polypropylene or similar polymers; a durable barrier reduces degradation from sun and weather. Recycled content can be a sustainability bonus.
- Structural design: Vertical ribs or mechanical guides help direct roots downward and away from membranes or water retention layers. A double-top edge and safe handling features are beneficial for long-term use.
- Ease of installation: Zipper or interlocking joining systems speed setup and reduce labor time, especially on rooftop projects with limited access.
- Safety and maintenance: Rounded edges and clear installation guidance support worker safety; consider barrier visibility for routine inspections on elevated installations.
- Compatibility with green roof layers: Ensure the barrier is suitable for integration with drainage layers, growing media, and waterproof membranes typical to green roofs.
- Warranty and made-in-USA options: Local manufacturing can support shorter lead times and easier service; check product warranties for trade compatibility and replacement needs.
- Environmental impact: Consider barriers with recycled content and long service life to minimize replacement frequency and waste.
Assess your project specifics—tree species, anticipated growth, roof loading, and climate—to select the barrier that provides the best balance of depth, durability, and installability. For larger trees on rooftop installations, deeper barriers with robust UV protection and durable edges generally outperform lighter, shallower options.