D&D ROOFING

Protan green roof system at The EV Hub

combining thermal performance, biodiversity, and sustainable design in the heart of Manchester.

CASE STUDY

Client: The EV Hub
System Installed: Protan Green Roof System (Warm Roof Construction)
Location: Reliance Street, Manchester, M40 3AG
Roofing Contractor: D&D Roofing Ltd
Completion Date: May 2025
Roof and Walkway Area: 92 m2

The EV Hub is a forward-thinking development located in Manchester’s green technology corridor. As part of its commitment to sustainability and innovation, the project required a durable and environmentally responsible roofing solution. We were appointed to deliver a warm flat roof system incorporating a wildflower-seeded living roof to promote biodiversity, manage rainwater runoff, and enhance thermal performance.

Roof Build-Up Details

The warm roof build-up was meticulously designed and installed to ensure longevity, performance, and compliance with current building regulations. The system included the following components:

Deck: 18mm OSB Board
A robust and stable substrate to support the roof structure and overlying layers.
Vapour Control Layer (VCL): Protan PE
A high-performance polyethylene membrane to prevent interstitial condensation within the build-up.
Insulation: 160mm PIR
High-performance rigid polyurethane insulation provided excellent thermal resistance, significantly improving energy efficiency in line with Part L requirements.
Waterproofing & Protection Layer: Protan F300M
A heavy-duty, mechanically fixed membrane offering outstanding durability and UV resistance, suitable for use beneath green roof systems.
Green Roof System: Wildflower-Seeded Living Roof A pre-seeded, extensive green roof installed to enhance biodiversity, regulate temperature, reduce urban heat island effect, and provide a visually appealing natural finish.

Challenges & Solutions

1. Site Access & Logistics:

Located in an urban area, careful coordination was required for the delivery and storage of materials. We implemented a phased delivery schedule to reduce site congestion.

2. Weather Considerations:

As with any roofing project in Manchester, unpredictable weather presented a challenge. Our team used weather monitoring tools to plan installation windows effectively, ensuring the VCL and insulation layers were installed in dry conditions.

3. Living Roof Integration:

Installing a wildflower-seeded roof system required precision in layering and drainage management. We coordinated closely with the green roofing supplier to ensure optimal growing conditions and long-term performance.

Outcomes & Benefits

Thermal Efficiency: The 160mm PIR insulation significantly reduced heat loss, contributing to lower energy bills and enhanced comfort within the building.
Sustainability: The green roof not only improves air quality and supports biodiversity but also aligns with the broader environmental objectives of The EV Hub.
Aesthetic & Functional Value: The wildflower living roof offers a visually appealing finish while helping with stormwater management and noise reduction.
Compliance: The system meets and exceeds current UK Building Regulations for thermal performance and sustainability.

Conclusion

This 92m² green roof installation at The EV Hub exemplifies the fusion of performance and sustainability in modern construction. The use of Protan’s high-quality roofing products combined with a carefully engineered warm roof design has delivered a reliable, energy-efficient, and environmentally conscious solution.

Green Roof Solutions with Protan – Delivered by Experts

This Protan green roof installation highlights our commitment to combining modern performance with ecological responsibility. As demand grows for buildings that do more than just meet regulations, we’re seeing increasing interest in green roof systems that help reduce energy costs, support biodiversity, and contribute to long-term sustainability goals.

At D&D Roofing Ltd, we work with high-performance products like Protan to deliver dependable, future-proof roofing solutions. If you’re considering a green roof installation—whether for visual impact, eco-credentials, or compliance—we can help you design and install the right system for your project.

To discuss your upcoming build, get in touch with our team or view more of our recent case studies to see the range of roofing systems we’ve delivered across Manchester, Yorkshire, and the North.

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