Lightweight Sedum Roof System
The Lightweight Sedum Roof System is our flagship extensive build-up. A complete pre-grown sedum blanket, engineered lightweight substrate, cuspated drainage and root barrier - everything you need for a working green roof on most flat and low-slope structures. Around 80 kg/m² saturated, it suits the vast majority of UK extensions, garages and commercial flat roofs.
Our most popular extensive sedum roof system. Pre-grown 8+ species sedum blanket, lightweight substrate, drainage and root barrier. Supplied UK-wide.
Frequently asked questions
How much does a Lightweight Sedum Roof System cost?
Pricing depends on roof size, location and access. Please contact us with your dimensions and we'll provide a fixed supply-only quote.
Can I install a Lightweight Sedum roof myself?
Yes - most extensive sedum roofs under 30 m² can be self-installed by two people in a weekend. We supply step-by-step instructions and phone support throughout the install.
How long does a Lightweight Sedum roof last?
Properly installed, the system lasts 40–50 years and often outlives the building it sits on. The sedum protects the waterproof membrane from UV damage, extending overall roof life significantly.
About The Green Roofer
The Green Roofer designs, supplies and installs green roofs for homes, developers and commercial buildings across the UK, with strong coverage in Essex, Southend-on-Sea, Chelmsford and London. We work on everything from a single garden shed or extension to large commercial flat roofs. See our residential green roof services or our commercial roofing services.
Our systems include sedum roofs, biodiverse and wildflower roofs, intensive roof gardens, blue roofs for stormwater attenuation and bio-solar roofs that combine planting with solar panels. Smaller projects are welcome too, including a green roof for your shed. We also supply green roof materials UK-wide for trade customers and DIY projects: complete systems such as the certified sedum green roof system, traditional green roof system, biodiverse green roof system and lightweight biodiverse system, plus individual components including sedum mats, wildflower mats, green roof substrate, drainage board, filter fleece, protection fleece and decorative cobbles.
Every project starts with a free site survey and a clear, no-obligation quote. We check roof structure, load capacity, waterproofing and drainage before recommending a system, and we offer ongoing green roof maintenance so the planting stays healthy year after year. Green roofs help manage rainwater, improve insulation, extend the life of the waterproofing beneath them and support biodiversity, including Biodiversity Net Gain requirements on new developments.
Planning a project? Read our guide to green roof planning permission. For commercial buildings we also supply and fit rainwater hoppers and roof flashings and trims.
Call 01702 964002 or email hello@thegreenroofer.co.uk for a free, no-obligation quote.