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

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

Today, the green roof is gaining popularity again. It has an attractive view and retains heat inside the building, preventing its overheating in the summer. The soil balances the temperature fluctuations and protects the materials from the effects of 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 longernormal, as plants and soil protect materials from weather conditions. If you will properly care for such a system, the roof life can exceed 20 years. If your house is built in a region whose 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.

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

Basic roof layers

Before starting work on gardeningroof, it is worth considering what kind of siding to the green roof will do. Perhaps it is worth choosing 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 basic layers. The uppermost - decorative plants, under which there will be a substrate, then there is a filtering and drainage layer, then a protective layer and waterproofing should be placed behind them. 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, thenit is first necessary to create a foundation that consists of supporting structures. If we are talking about a flat roof, then the base will be concrete slabs, whereas for a 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 optimum deviation parameter is the limit from 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 havewaterproofing layer. This is due to the fact that the plants will be watered, and water can 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 alsoto correspond to the plan, that's 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 effectiveness 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

Green roof, photo of which you can considerin the article, must be insulated. The insulating layer is most often created from cork slabs, and 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 already exists in the attic space between the rafters. But when green moss is used, it's not about warming the 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 verybeautiful, 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 a conventional 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 ofthe volume of fluid that is necessary for normal plant life. 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 large fraction. Excellent results can be achieved with the use of chopped pumice, polyamide, perlite coconut. Nowadays 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

Green roof color can be created not only withusing plants, but also modern covering materials by the type of metal. 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 the help of this cloth, it is possible to exclude mixing of drainage with soil, which can occur over time. Geotextile is overlapped.

Lathing at gently sloping roof

It is necessary to apply a geogrid, sincethe impressive slope of the 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 a shed. 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 awalling material can be used 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 the onduline. After laying all the layers, you need to create a fertile soil, the thickness of which can be equal to 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 ground, you can do the plantingplants. 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.