Green + Solar

Double Duty: Sustainable Rooftops for Climate-Ready Cities

As cities push toward net-zero goals and climate resilience, rooftops are becoming critical infrastructure. The next
evolution? Combining green roofs with solar photovoltaics (PV) to create a unified, high-performance system that
delivers energy savings, stormwater control, and long-term economic value.

At Chatfield Green Roofing, we’re excited to support this growing movement—where green roofing and solar work handin-hand to enhance each other’s benefits. From increased solar output to natural rooftop cooling, biodiversity, and fire protection, the synergy of these two systems is transforming how we think about urban rooftops. We’ve provided essential resources to help you explore this integrated solution. These tools show why green roofing + solar isn’t just a trend—it’s a scalable, cost-effective strategy for climate-ready cities and future-focused design.

Why Green Roofing + Solar?

Pairing solar panels with vegetated roofs creates a high-performing system that:

Increases solar efficiency by cooling PV panels naturally
Reduces rooftop temperatures and building energy loads
Enhances stormwater management and biodiversity
Adds fire resistance and rooftop protection
Supports urban climate goals and job creation in both green and renewable sectors

By integrating green roofs and solarPV, rooftop spaces can deliver powerful synergy:

Enhanced solar output (5–15%) when panels cool from plant shading
Ballast & fire protection derived from growing media
Improved insulation, stormwater control, biodiversity, air quality, and human well-being
Extended roof lifespan and new green-industry job opportunities

Featured Articles & Research
Green roofs can boost solar efficiency by 5–15% (ABC News Australia)
NYC rooftops go green and solar as sustainability accelerates (Smart Cities Dive)
Best practices for combining solar panels and green roofing (Greenroofs.com)

The Solar Green Roofs Resource Guide

A free, 100-page global publication offering design strategies, installation best practices, case studies, and policy insights.

As cities look to maximize the performance of every square foot, a new opportunity is rising—literally. The Solar Green Roofs Resource Guide is now available for free download, offering a deep dive into how green roofing and solar photovoltaics (PV) can work together to deliver powerful environmental, economic, and energy benefits. Launched on World Environment Day in June at the World Green Infrastructure Network Congress in Basel, this 100- page, free guide represents a global collaboration between WGIN, Solar Power Europe, the European Federation of Green Roofs & Walls, and Green Roofs for Healthy Cities.

Launched on World Environment Day in June at the World Green Infrastructure Network Congress in Basel, this 100-page, free guide represents a global collaboration between WGIN, Solar Power Europe, the European Federation of Green Roofs & Walls, and Green Roofs for Healthy Cities.

Whether you’re a developer, architect, planner, or property manager, this guide is a must-read for anyone seeking to create smarter, more resilient buildings.

Empowering Climate-Resilient Roofscapes
The guide emphasizes holistic urban solutions—utilizing rooftops to advance renewable energy, stormwater management, biodiversity, and urban cooling—all in one cohesive strategy.

What’s Inside:
This 100-page resource brings together global expertise to provide:

Key design principles, ideal spacing, and installation timing
Design best practices for hybrid systems
Installation strategies and ideal sequencing
Insights on cost-effectiveness and maintenance
Overview of relevant policies, regulations and market trends that support adoption
Real-world case studies showcasing successful solar green roof projects

Download The
Solar Green Roofs Guilde