6 Surprising Benefits of Green Roofs

Image of Green Roofs

The popularity of green roofs has surged across the UK over the past few years, and it’s easy to see why.

A popular future in eco homes, green roofs look great, help support carbon-neutral homes, and can make a major contribution to lowering energy bills (a particularly major benefit in the current climate!).

But looking pretty and cutting costs is only part of the story. In this blog, we’ll explore six benefits of green roofs that you may not have thought of.

Green roofs reduce your risk of flooding.

A green roof takes in all the rainwater that would run straight off a conventional roof, through your guttering and into the sewage system.

Instead, this rainwater is processed in a number of different ways. Some is absorbed by the plants, some evaporates back into the atmosphere, and some is held in the drainage layer — and only runs off some time later.

This means that, in times of heavy rainfall, the water load peaks on the sewage system are levelled out, cutting the flood risk in your area.

They regulate your home temperature.

On a hot, sunny day, a normal roof takes in all the heat and warms up your house, often to uncomfortable levels (especially during notoriously muggy British summers!).

The plants on a green roof absorb and reflect most of that heat, ensuring that the house stays relatively cool in summer, without needing to crank up the air conditioning.

A green roof also helps in winter, but in the opposite direction: it provides a thick layer of insulation that keeps heat in. It acts as a giant green jumper for your home, helping you to stay warm longer and cheaper, and get up to temperature faster.

Coupled with other energy-saving systems like heat pumps, a green roof can have a significant impact on your home’s carbon footprint.

Green roofs filter out unwanted noise.

If you live in a particularly noisy area, such as under an airport flight path or next to a busy main road, a green roof can make a huge difference to the amount of noise that reaches you inside.

Its dense, thick nature provides sound deadening by absorbing any noises, giving you far more peace and quiet inside. As well as being generally more pleasant, less noise means more sleep, reduced stress and better focus. Who knew a green roof could significantly benefit your health?

Increase the biodiversity of your environment.

Urban environments mainly consist of man-made materials, among which animals find it difficult to survive.

In contrast, the diverse ecosystem of plants, grasses and other organic matter within a green roof provide a perfect place for birds, insects and other avian creatures to thrive.

So, by installing a green roof on your home, you could make a meaningful contribution to the biodiversity of your area.

Green roofs last longer.

Roofing material wears down over time due to the ravages of the weather. Sunshine, rain, snow, frost, and wind all take their toll as the years go by.

A green roof adds a reliable layer of protection that can add decades to the lifespan of your roof. In fact, a green roof could eventually deliver a full return on investment compared to conventional roof repairs.

Bees love green roofs.

Across Europe and the United States, bee populations have declined substantially. Urbanisation, intensive farming and disease have all contributed to the bee crisis, with worrying effects on natural ecosystems.

You can do your bit to help bees thrive again by giving them a green roof where they can pollinate. The benefit of this can’t be understated. Pollination makes a major difference to the farm production of 90% of the food we eat. Without bees, the world as we know it today could be in serious trouble.

Installing a green roof in your home is a great way to support bee populations and, in turn, do wonders for our planet.

In summary

Green roofs are just one of the ways you can cut your energy costs and reduce the environmental impact of your home.

As experienced project managers for eco-homes, Buildsmith has the connections and know-how to make your next project the most environmentally-friendly yet. Visit our eco homes page to find out how.