Guide to green roofs

Here at Gilston Building Services, we take roofing seriously. From repairing tiles and flashing, to building an entirely new roof, we have the experience and the expertise to help get the job done. But what about a green roof? Are these practical? As one of the most popular roofing trends, we have produced this guide to green roofs.

What is a green roof?

A green roof, or a garden roof, is a specially designed roof which creates an area of green space. Usually this entails a layer of soil, a layer of turf and some wildflowers mixed in. No weeding this garden! Not only do these look really cool, they also provide a place for our wildlife to enjoy. And you’re in good company. In 2020 BC Mesopotamia, ancient roof gardens were installed and enjoyed!

Green roofs in commercial properties

Often built with flat, asphalt roofs, commercial properties make the perfect roof space for a green roof. The layer of greenery can help to reduce the internal temperature of the building, reducing reliance on fans, air-con, and other fuel sucking, money costing, methods of keeping cool. This education in temperature is also great for your roof itself, and can help extend its life.

Domestic green roofs

The most common use for domestic green roofs is currently over an orangery or home extension. This is because a slightly pitched or flat roof makes for the best surface for a green roof, helping all the layers to balance.

In addition, a green roof over your home extension can actually be the perfect way to finish it off. After all, an orangery looking to bring the outdoors in, can now also support a further area of green space, perfect for bird watching.

Increase your rental potential

Furthermore, a green roof space can be a massive selling point for a flat, or a property with no other outdoor space. This is because it provides a great alternative to the traditional roof terrace, and gives your tenants some space outside. In cities where outdoor space is limited, a green roof can really increase your rental potential.

Potential disadvantages

When it comes to a green roof, there are also some potential disadvantages. These include:
The weight of the green roof can be upwards of 25 pound per sq ft when wet. This means that your roof may not be able to support this weight, or there may be an additional cost for you to reinforce the roof.

The roof will be colder in winter. As a result of the greenery preventing the roof from absorbing heat, you could end up spending more money on heating your home during the winter.

In summary

A green roof can be a fantastic investment if your property meets the criteria. If you would like more information, contact us at Gilston Building Services today.


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