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Professional green roof drainage and storage membranes
Permagard is committed to providing the highest quality green roof drainage and storage membranes when and where you need them. In addition to this, we provide the technical information and support needed to make your green roof design a success.
We have a proud history of supplying quality products to professional installers and specifiers, offering the perfect balance between high performance and sustainability, without compromising on cost.
Download our Green Roof Brochure
How we can support your next green roof project?
Our Professional Range
Professional Green Roof Membranes to match your needs
Our long lasting, robust green roof drainage and storage membranes are ideal for larger residential and commercial green roof projects. The drainage layer is a key component of any green roof system, supporting effective water management and allowing excess water to safely drain away. Our recycled HDPE Green Roof Membranes ensure that the drainage element of your system delivers for years to come.
Each PermaSEAL membrane (with the exception of the quick draining PermaSEAL 8 Green Roof Membrane) features water storage cups designed to retain sufficient water to sustain your chosen vegetation from sedum to larger shrubs/trees:
Which membrane is right for me?
Technical Downloads
Our technical documents, drawings and images will enable you to find the right green roof drainage solution.
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Technical Downloads
Benefits of Green Roofs for your Commerical Projects
A sustainable solution
With an immediate need for environmentally friendly, sustainable solutions in the commercial and residential building sector, the Green Roof industry is healthier than ever.
Green roofs are increasingly popular, delivering a range of benefits spanning the ecological to economic. A green roof can help businesses become greener in every sense and deliver on CSR promises.
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Improve energy efficiency and reduce consumption, ultimately cutting costs.
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Support wildlife and biodiversity.
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Create recreational spaces to enjoy in urban areas.
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Extend the service life of the roof.
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Improve stormwater management.
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Improve a building's BREEAM rating and many local authorities favour proposals with green roofs.
Trusted by professionals
We have worked with architects, contractors and builders to help them realise their green roof design. Whether you require an extensive or intensive green roof system, have walkable or drivable elements, we stock the right membrane to meet your project specification.
Large Domestic Extensive Green Roof
Permagard supplied design & construction company Pople Associates with an extensive green roof system for a large extension to a domestic property in East Sussex.
It's great to see a green roof project come together and deliver a fantastic end product. Our flagship green roof membrane, PermaSEAL PRO 20P, offered the perfect balance between water storage and fast drainage. A well thought out design, product specification and installation has allowed the wildflowers to flourish, creating something that the client can enjoy for many years to come.
Gregg Setherton - Permagard Technical Operations Manager Read Case studyWhy Permagard
Supply the best, for the best
Permagard's commitment to technical excellence and outstanding customer service makes us the ideal choice for professionals looking to complete their green roof product specifications and overall green roof designs.
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PermaSEAL green roof membranes are made from recycled high density polyethylene helping further the sustainability of your project.
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Our PermaSEAL 8 has a superior integrated geotextile layer that leads the market.
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All of our membranes are currently in-stock in our UK warehouse and available for quick delivery. Customer service is at the forefront of our company values and our team of green roof technical advisers offer friendly, professional and reliable support.
Green Roof Organisation (GRO)
Permagard is a member of Green Roof Organisation (GRO), and follows the GRO Code when advising our clients on the key considerations around their designs. We're proud to be part of an organisation so committed to raising standards and spreading the benefits of green roof systems.
Their focus on helping urban areas mitigate and adapt to the effects of climate change with high quality green roof solutions is something we fully support.
Our technical team is here to support you and answer any questions you have about specifying our membranes for your green roof systems.
Technical Downloads
Getting the correct design and specification of drainage layer is essential for the success of your green roof system. Whether you’re an architect, installer or builder, we welcome the opportunity to help you with your green roof project. Our technical documents, drawings and images will enable you to find the right green roof drainage solution. You can download our technical datasheets and other resources below.
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Permagard – Professional Green Roof Membrane Suppliers
Permagard only work with the highest quality green roof membrane manufacturers. If you want to vary your project portfolio with a green roof project and tick the box for certain assessment standards, then speak to us today. We’re happy to feed into the design process, helping you find the best membrane for your project. Call today on 0117 982 3282.
Download the 
Green Roof Systems Brochure
For more information on our range of membranes, download our Green Roof Brochure PDF.
