New Build Green Roof Applications

With many environmental and practical benefits, green roof systems are becoming more and more popular.

Reducing Urban Heat Island Effect

Greater Biodiversity 

Storm Water Management

Improving Air Quality

Noise Reduction

The Number One Choice for Waterproofing
in Conjunction with Green Roof Systems

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Green Roof Systems Tailored to You

Polyroof’s liquid roofing membranes are seamless, maintenance-free, light-weight and exceptionally long-lasting. This makes our systems the ideal green roof base. Whether you need a full green roof system designed or simply just the roofing elements, the Polyroof team of experts can tailor a green roof solution to your exact requirements.

We understand that our clients are often tasked with many responsibilities during a refurbishment project. Book in a non obligatory consultation with our team, Advise, Design, Support, Guarantee, our team will guide you through every step of the process. 

What Kind of Green Roof?

Green flat roofs are becoming increasingly popular, and for good reason. They reduce energy costs by creating natural insulation, they create peaceful retreats and recreational areas, they provide natural habitats for wildlife, and they absorb storm water thereby reducing run-off into overworked sewer systems.

On a wider scale, in city environments, green roofs improve air quality by absorbing pollutants and by helping to reduce the urban heat island effect. City and suburban developments absorb and trap heat whereas evaporation from a green roof has been shown to cool surrounding air temperatures. A green roof must, like any roof, protect the building from the elements via a high quality, totally dependable waterproof membrane. 

Polyroof’s cold liquid-applied seamless membranes are ideal waterproofing solutions for use in green roof systems because they are flexible enough to easily accommodate structural movement as well as being lightweight and extremely durable. When used in a green roof system the durability of Polyroof membranes are even further extended since there is no UV penetration.

Extensive Green Roof System

Extensive Green Roof System

Typical features:
  • Most popular type of Green Roof
  • Typically finished with Sedum, Wild and Meadow Flowers
  • Low growing / Minimal maintenance
  • Lightweight
  • Shallow substrates
  • Ability to create Biodiverse environments
  • Variants include non-planted “brown roofs”
  • Not typically designed for public access
  • Intensive Green Roof System

    Intensive Green Roof System

    Typical features:
  • Used primarily as recreational space
  • Typically finished as a lawn, and can incorporate larger plants and shrubs
  • Higher Maintenance required
  • Heavyweight
  • Deep Substrates required
  • Often includes hard landscaping such as walkways, seating and planters
  • For limited or regular public access
  • Blue Roof Systems

    In addition to green roofs, blue roof system can be incorporated into the green roof design. Blue roof systems provide rainwater attenuation by collecting and controlling the discharge of rainwater from the roof contributing to Sustainable Urban Drainage System (SuDS) requirements. In many cases Blue roofs are incorporated in conjunction with an Extensive or Intensive Green Roof design. Blue roofs are increasingly popular choice in inner city and urban environments.

    Need support to find the best solution?

    Let our team of experts advise and support your project at every step to create inspiring, innovative roofing solutions.

    Service driven support to meet your needs

    New Build Green Roof Case Study

    Grand Designs: Green Roof Project, Windermere

    The Protec system was used to waterproof the domed green roof areas of this sustainable house development on Grand Designs, Channel 4. With an ambitious vision and a tight budget, Robert and Milla Gaukroger set about transforming an unattractive 1980’s house overlooking Lake Windermere into a state-of-the-art sustainable home. In order to blend into the hillside setting, the domed roofs of the house were to be covered with a wildflower meadow mix to provide a green roof construction.

    Why Polyroof for a Green Roof System

    No matter the size, shape or complexity of a roof, Polyroof’s liquid systems will form a seamless waterproof membrane across the entire roof area. The finished surface is tough, flexible and impervious to water.

    With proven lifespans in excess of 25 years, Polyroof systems are the number one choice for all green roof applications.

    1. Waterproofing that’s Proven to Last

    With proven lifespans in excess of 25 years, Polyroof systems are the number one choice for all green roof applications.

    2. Seamless, Maintenance-Free Waterproofing

    Polyroof systems are cold liquid-applied to form a continuous, seamless waterproofing membrane. This means there are none of the weak points associated with the lap joints of sheeted roof materials. 

    3. Lightweight & Fully Root-Resistant Membranes

    Load bearing often presents a particularly challenging aspect when designing a green roof. Weighing around 3.4 kg/m2 and available in innovative warm roof designs that do away with the need for over-decking or carrier layers, Polyroof waterproof membranes are as low in weight as they are high in performance.



    CAD Drawings

    BIM Models


    Technical Data Sheets

    Case Studies

    <br>The Number 1 Choice for Green Roofing Solutions

    The Number 1 Choice for Green Roofing Solutions

    Our liquid roofing systems offer BBA and FM approved products that are versatile. Contact our Technical Team to source a tailored green roofing system that suits your project.​

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