Flat Grass Roof Construction

Build a living roof green roof.

Flat grass roof construction.

The 3 most common materials used for flat roof construction. I liked the idea of having a bit more greenery in the property we live. Of sodden turf requires a heavier and specially designed structure. So any timber joists that are used need to be strong enough to support this weight.

A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal. There are several methods and materials for the design of the exterior surface of a warm or cold flat roof. Hot tar and gravel. Flat roof construction for residential.

As you may imagine there is a fair amount of weight involved here in terms of boards felt etc. A flat roof usually consists of the following. This means that shed green roofs are a very popular choice along with log cabin and garage green roofs. It replaces the ecology the new house sits upon thereby replacing the habitat that a house takes away.

Green roofing is becoming more and more mainstream as architects garden designers property developers and householders work harder to improve eco efficiency and combat the. Sedum green roof kit for flat roofs. Green roofs flat knowledge of green roof construction methods and the benefits of incorporating them in building design is steadily becoming more widespread in the uk. Sizes of joists needed for flat roof construction.

The pitch of your roof determines how fast rainwater runs off it. For a wildflower roof with a 150mm depth of the substrate work on loading capacity of 250kg per square metre. Living roofs on houses fall into two basic categories. Slopes and angles for green roofs.

Unlike pitched green roofs flat green roofs can either take the form of extensive consisting of a thin layer of turf or sedum matting or intensive characterised by a greater soil depth that can even accommodate shrubs. Old asbestos roofs are often replaced with flat roofs. Turf roofs with about 15 cm. Sedum roofs differ from turf roofs in that they are much lighter and can usually be built with the same type of roof structure that a normal roof would require whereas the weight of 15 cm.

To support lightweight sedum green roof construction your roof needs a loading capacity of at least 120 kg per square metre. Waterproof membrane to prevent water penetrating the structure and interior of the. Of soil and sedum roofs with about 4 cm. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span.

While redeveloping our house we decided to install a living roof on our kitchen roof why you ask. For that reason cold flat roof construction needs to keep in mind the need for unblocked airflow. If you have a sloping roof of 3 degrees then please take a look at our pitched roof kits where you can find a range of green roof kits that are perfectly suited to your sloping roof. Having said that any outbuilding or garden building with a flat roof is a suitable route.

Flat roofs are an easier option from a green roof construction point of view but living roofs are able to grow on pitched roofs too.