The house is under a green roof. Green roof with own hands. A photo

One of the ancient varieties of roofs is considered green. Formerly, the buildings were covered with decking from the hewn half-trees or poles, birch bark was placed on top in several layers, and turf was laid on it. In order to prevent it from being pulled down, a log or board was installed along the ramp. Above lay the turf with moss or grass.

Today, the green roof is gaining popularity again. It has an attractive view and keeps heat inside the building, preventing its overheating in the summer. The soil balances temperature fluctuations and protects materials against negative factors, increasing their service life. If you install such a roof, then you can get rid of external noise. Modern technologies allow to equip such a system independently, increasing the area of the site and successfully adding this element of the exterior to any landscape.

Why choose a green roof

The green roof has many advantages over traditional, it:

• Durable;
• Delays rainwater runoff;
• Has the qualities of thermal insulation;
• Improves the ecological situation.

Vegetable roof will last much longer than usual, as plants and soil protect materials from weather conditions. If you will properly care for such a system, the life of the roof can exceed 20 years. If your house is built in a region where the climate is characterized by frequent and severe downpours, then the green roof can be an excellent solution, since it is able to cope with a lot of water.

By installing a lawn on the roof, you can get rid of excessive amounts of water. Vegetation will absorb about 27% of the precipitation. Thus, some owners of private houses avoid flooding.

The main layers of the roof

Before you start work on gardening the roof, it is worth considering which siding to the green roof will do. Perhaps you should choose a vinyl, whose appearance can imitate natural wood. Green roof has many advantages, but for an inept user it can be a real problem. Therefore, before starting the arrangement of such a system, it is necessary to become more familiar with the main layers. The uppermost - decorative plants, under which there will be a substrate, then there is a filtering and drainage layer, followed by a protective layer and waterproofing. Roofing should have in the composition and traditional materials of the type of vapor barrier and base, these layers will be the lowest.

Features of green roofing

If you are implementing a green roof, you should first create a foundation that consists of supporting structures. If it is a flat roof, the base will be concrete slabs, while for the pitched roof the main element will be a continuous crate. If the arrangement of the green roof is carried out on the old covering, for example, on the tile, then it must be removed. Flat roofs should be given a slight slope, which should be directed towards the drain. The optimal deviation is the limit of 1.5 to 5 °. To create a slope, it is best to use a cement-sand mortar.

Waterproofing

A house with a green roof must have a layer of waterproofing. This is due to the fact that the plants will be watered, and the water may leak to materials that do not like moisture. For this, a polyethylene film or polymer membrane can be used. For this, liquid rubber is often used. Waterproofing is located on the roofing.

The facade of a house with a green roof should also correspond to the plan, which is why it is better to use natural materials for facing the walls of this house. Creating a layer of waterproofing, you can use a coating of marine plywood. When using boards, it is necessary to exclude gaps and gaps between them. To improve the efficiency of waterproofing, it is best to lay the polymer membrane in two layers. The lower layer should be fixed mechanically, and the top layer should be welded. The seams obtained are welded together.

Warming

The green roof, photo of which you can consider in the article, must be insulated. The insulating layer is most often created from cork boards, polyurethane is also successfully used, which is applied in foamed form. You can apply extruded polystyrene foam. Plates should be laid as tightly as possible to each other, if the top layer creates a slight pressure, then a special adhesive should be used. Some experts do not strengthen the slabs to the base, since the pitched roof does not require additional insulation, because this layer is already in the attic space between the rafters. But when green moss is used, it's not about warming speech, because this plant is used for the thermal insulation of roofs of houses.

Creating a barrier for plants

The house under the green roof will look very nice, but it is required to observe the technology of works on its arrangement. It is important to have a root layer, which will prevent the germination of plants deep into the roof. The barrier is most often a polymer film or ordinary foil. An excellent solution will be a film with a metal coating, which is laid on the layer of waterproofing.

Drainage layer

Drainage material will delay a certain amount of fluid, which is necessary for normal life of plants. And the water should move along the roof towards the drain. If your house has a flat roof, then you must create conditions that will exclude the stagnation of water. For the lower drainage, it is necessary to lay the expanded clay, which has an average or coarse fraction. Excellent results can be achieved with the use of chopped pumice, polyamide, perlite coconut. Today, special artificial mats are realized, which look like nets and have great flexibility. If you do not have these materials, then you can use loosened clay or gravel. In order to ensure an effective water flow, additional perforated tubes can be installed.

Filtration layer

The green color of the roof can be created not only with the help of plants, but also with modern covering materials of the type of metal tile. As practice shows, this option is less laborious, because after the installation behind the roof will not have to look after. Among other things, the green roof has many layers, among which it is necessary to distinguish the filtration layer. It is necessary to prevent unnecessary precipitation. An excellent filter is geotextile, which has a high density. With this canvas, it is possible to eliminate the mixing of drainage with soil, which can occur over time. Geotextile is overlapped.

The lining at gently sloping roof

It is necessary to apply a geogrid, since with an impressive slope of skates, the soil can simply slide down. The geogrid has insignificant weight and has the appearance of plastic cells. If there is a green roof with a slight slope, it will be enough to prepare the wooden partitions, which will perform the function of the dredging. Wooden slats should be laid in such a way that it was possible to create an interesting geometric ornament. On the perimeter for fixing, you should install the skirts.

Fertile layer

If you decide to green the roof, then as a decorative material for the walls you can use siding. A green roof on your house may not be in this case, because such a decoration for the walls can be used in tandem with an onduline. After laying all the layers, you need to create a fertile soil, the thickness of which can be 10 cm. The soil must be firm and compact, but the usual mixture for the garden is not suitable for this.

Conclusion

After laying the soil, you can plant the plants. It is important to take into account that the conditions from above will be close to the desert. If you want to give preference to trees, then you should select dwarf species that have a small root system.