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Green Roof Essentials

Wallbarn - Recycled Polyester Geotextile Filter Fabric - 300gsm (100ms2) 1 - 2 Working Days £166.50 View Product

Wallbarn - High Tenacity Polypropylene Geotextile (100ms2) 1 - 2 Working Days As Low As £126.30 View Options

Wallbarn - Edging Bar for Green Roof - 2400mm x 100mm 1 - 2 Working Days £54.79 View Product

Wallbarn - 20-40mm Riverstone Pebbles - 1 Cubic Meter Bag 1 - 2 Working Days £159.60 View Product

Wallbarn - 20-40mm Riverstone Pebbles - 25kg Bag 1 - 2 Working Days £10.08 View Product

Wallbarn - Loose Substrate for M-Tray & Sedum Green Roof - 1 Cubic Meter Bag 1 - 2 Working Days £250.80 View Product

What is a green roof?

A green roof is a layer of plants and soil (or growing medium) usually installed over a flat (or sometimes slightly pitched) roof. It typically includes drainage, root protection and a waterproof base layer.

What are the benefits of a green roof?

Green roofs can provide insulation, reduce rainwater runoff, attract wildlife and may extend the lifespan of your roof by protecting it from weather and UV (if installed properly using the right materials).

Can i install it myself?

In theory, yes you can install a green roof yourself if the roof is structurally sound and you have the right tools. Whether you want to take it on may depend on the size of the project and your DIY confidence. Starting with a small test project like a shed is often a good idea.

Do i need planning permission to install a green roof?

Most green roofs in the UK don't require planning permission, but it’s best to check with your local council just in case.

How much does a green roof weigh?

Depending on the type, a green roof can weigh between 60–150 kg per square metre when wet. Always carefully check your roof’s load capacity before you look to install one/get one installed.

Is a green roof hard to look after?

Not at all. The beauty of a green roof is both literal and practical and they are low-maintenance. Just keep an eye on and remove weeds, clear debris and give it a good watering during very dry spells.

What types of buildings can support a green roof?

Green roofs are popularly installed on flat roof sheds, garages, home extensions, garden rooms and even contemporary flat-roofed houses. If the roof is in good condition and can handle the weight, then in theory it can support it.

Are green roofs, living roofs and sedum roofs the same thing?

Not exactly - but they’re closely related. A green roof is the general term for any roof covered in vegetation. A sedum roof is a type of green roof that uses low-growing sedum plants, known for being hardy and low-maintenance, perfect for domestic flat roofs. A living roof is simply another name for a green roof, often used in more lifestyle or eco-focused contexts. So while all three refer to the same idea, a “sedum roof” is a specific type, and a “living roof” is just a more casual term.

Got a boring flat roof that could be turned into something greener?

Green roofs aren’t just for city centres or fancy architects. And with the right materials, they’re surprisingly easy to build, especially for sheds, garages, home extensions or garden offices.

They look impressive, add life to your space and can offer more tangible benefits too: better insulation, a longer-lasting roof and a little patch of nature right where you live. You don’t even need a full kit to get started - just the right basics.

At Roofing Megastore, we supply proven and reliable materials that will help you to build a functional, long-lasting green roof system. From geotextile filter fabric to edge restraints and decorative pebbles, each item we stock is designed to support drainage, protect your roof and look great while doing it.

Not sure what you need? Scroll down for product info and answers to our most common questions. Or get in touch with our friendly team if you’d like more personalised guidance.

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