Sloped Green Roofs
Design with Confidence: Green Roof Solutions for Sloped Surfaces
Engineered to perform beautifully—even when the roof isn’t flat.
The GreenGrid® Vegetative Green Roof System are designed to meet the unique challenges of low-slope and moderately sloped roofs, ensuring plant health, structural integrity, and long-term performance. With thoughtful engineering and slope-specific adaptations, these systems bring the benefits of vegetative roofing to surfaces once considered too complex. From erosion control to load distribution, every detail is addressed to support sustainable, visually appealing installations on inclined planes.
Design Elements
- Compatible with low-slope roofs up to 16° (2:12 pitch) per ASTM E 1918-97.
- Supports GreenGrid® modules on concrete decks, plazas, and sloped surfaces.
- Requires minimum slope of 0.25 inches per 12 inches to prevent water accumulation.
- Accommodates slope-specific planting methods and erosion control strategies.
- Structural abutments recommended for long-slope applications to manage load.
- Requires engineering evaluation of shear forces, especially in frost zones.
- Plant selection tailored to slope angle and sun/wind exposure.
Performance Outcomes
- Expands green roof possibilities to sloped and non-traditional surfaces.
- Maintains plant health and system longevity through proper drainage.
- Reduces erosion and structural stress with engineered load management.
- Enhances building aesthetics and environmental performance.
- Enables compliance with ASTM slope standards and best practices.
- Offers design flexibility for architects and engineers working with complex rooflines.
Plant selection and planting methods shall be adjusted to the relevant slope and exposure – Consult your GreenGrid® Representative for solutions.
