Sedum is a type of low-maintenance, drought-resistant plant that thrives in various climates. Sedum’s versatility is why it is commonly used for green roof installations.
To help you plan and create an effective living roof, follow our easy step-by-step guide to creating a green roof with Sedum Supply:
Before starting an installation, assess your building’s structural integrity. Sedum Roofs range from approx. 47 –80 kg/m² depending on design. Some green roofs can be heavy, with a potential weight of 170-220 kg/m² for typical biodiverse wildflower and planted options. If you’re unsure of your building’s current capacity, we recommend consulting a structural engineer or architect to ensure it can support the additional weight. This is particularly beneficial for large-scale installations.
Installation of green roofs on sheds or similar outbuildings may not require formal planning permission. However, for occupied buildings or similar, we recommend speaking to your local council building regulations department. Some authorities may have specific guidelines or restrictions that you need to follow as set by the Green Roof Organisation (GRO). Sedum Supply is a proud member and approved supplier of GRO-compatible systems and materials.
Determine the size and shape of your green roof and create a detailed plan. Consider factors such as access, drainage, and any obstructions like vents or chimneys. Sedum Supply has over 30 years’ experience in green roof design and works to ensure all products are easy to install and deliver an effective, long-lasting installation. This provides a more effective DIY solution for living roof design and maintenance at any scale.
Installing and maintaining a living roof can not only provide environmental benefits, but also help prolong the lifespan of your roof.
Before beginning any living roof installation, ensure that the roof surface is clean, free of debris, and in good condition. Repair any leaks and, if necessary, reinforce the roof to support the additional weight. Install a waterproofing membrane to protect the roof structure from water damage.
Proper drainage is crucial to prevent water buildup on the roof. Install a drainage layer, typically consisting of a lightweight, high-water-retention material, over the waterproofing membrane. Include a drainage board to provide additional support and water flow. Additionally, although not necessarily required on a sedum roof, consider installing an irrigation system on other varying types of green roofs systems to ensure certain plants receive adequate water during dry periods.
Apply a layer of lightweight growing medium over the drainage layer. The growing medium should have good water retention properties while allowing excess water to drain effectively. Sedum Supply have a growing medium to match sedum plant choice for any green roof.
Sedum varieties with shallow roots are typically preferred for green roofs. Sedum Supply offer a range of sedum turf and modular products that can help make planting easier. There are up to 12 – 14 varieties of sedum within our range and most can be added at any point.
Once planted, water the newly planted Sedum thoroughly and ensure that the plants are well established. Once installed, continue to monitor the roof’s water retention, and adjust irrigation as needed. Regular maintenance tasks include removing weeds, pruning as necessary, and fertilizing according to the specific needs of your Sedum plants.
Regularly inspect your living roof for any issues, such as leaks, plant health, or drainage problems. Address any concerns promptly to ensure the longevity and effectiveness of your green roof.
Remember, creating a green roof is a complex process, and it’s recommended to consult with professionals or experienced green roof installers to ensure the best results. They can provide guidance specific to your location and offer expertise in designing and implementing a successful sedum green roof.
Sedum Supply are here to help. Get in touch with one of our dedicated team today.
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