Increasing housing density and increase in ambient temperature compared with the country territories – now well-known phenomenon that became known as the "urban heat island." Many researchers predict that green roofs could become a tool with which you can reduce overheating of the big city in the summer. The presence of vegetation on the roof closely mimics the natural environment, thus increasing the amount of greenery, the evaporating moisture and provide shade on the roof surface. Evaporation plant, located on the roof, as well as "shadowing" roofs – the main factors influencing passive cooling of roof in the hot season. As a consequence of these factors reduces the ambient temperature, because less heat is reflected back into the atmosphere. The vegetation on the roofs of the town a positive effect on ambient air quality, because it "captures" solid particles in the air, and also binds carbon dioxide – the main product of "breathing" of the city. Green roofs are becoming more successful habitat for various rare and endangered species.
It is reported that in London alone on a series of green roofs biologists have discovered more than 50 species of spiders. In Germany, on the green roofs were observed nesting sites of rare birds. Thus, green roofs could help in increasing the diversity of wildlife, although this advantage is heavily dependent on geographic features. Green roof – a space created by the addition of over a traditional roof system of additional layers of fertile soil and plants. Not to be confused with the traditional green roof, roof garden, where plants are located in freestanding containers (tubs) on the roof terrace or operated parking facilities. .
To winter in apartments and houses were warm and comfortable, many of us install new windows and modern radiators, but not always, unfortunately, this is enough. Wall insulation – that's what we forget, when perplexed, why still cold! There are two basic ways of thermal insulation of walls: 1) Thermal insulation of walls from the outside, 2) insulation of the walls inside; The first way is that your walls will be wearing so 'shubu 'from the heater and they will be protected from freezing and atmospheric effects, the area of the room has not changed. But if you live in an apartment house you will, of course, is more suitable second method of warming. So how do the internal wall insulation? – Ask You. It is very simple. To date, there are many schemes insulation inside walls, but we consider the 2 most effective way of insulation. The first method-Wall Insulation materials POLYSTYRENE-vapor barrier Film (for a small area of wall) mounting a heater do step by step: 1.
Fought back and clear the wall of the old plaster. 2. Treat it with a good antiseptic. 3. Here, expert on growth strategy expresses very clear opinions on the subject. Gruntuem wall and thoroughly caulk the gap.
4. If necessary, alignment of the wall to prevent the formation of voids between the sealant and the wall. 5. Fasten polystyrene (the thickness of the slab should be at least 30 mm) to the wall using mounting adhesives, for reliability hammering dowels at 3.4 each plate. Slabs should be laid in a checkerboard pattern, the joints between them is filled foam. 6. Entire surface of the insulation cover tightly with foil vapor barrier assembly adhesive or sealant with a small overlapping 10-15cm. On all edges of the film undergoing construction adhesive tape (can be office, if the normal pvc film). 7. Install plasterboard against the boards and secures them knock-plugs to the wall. Cons EPS: a) low paronepronitsaemost – Wall will not 'breathe'. b) In combustion emits toxic pungent smell (fire, this material does not fall in love). The second way-wall insulation of mineral wool materials PLATE-vapor barrier film insulation installation is slightly different: 1. Fought back and clear the wall of the old plaster. 2. Treat it with a good antiseptic. 3. Gruntuem wall and thoroughly caulk the gap. 4. Make a crate of U-shaped profile with distance from the wall 50 mm (the thickness of the insulation). 5. The distance between profiles, struts do depending on the width of sealant (usually 45-50 cm). 6. Laid with the first layer of insulation for the crate directly to wall, a second layer between the profiles resistant. 7. We close our entire economy first layer of drywall screws. 8. Entire surface of the drywall here and cover tightly with foil vapor barrier installation adhesive or sealant with a slight overlap 10-15cm. On all edges of the film undergoing construction tape. 9. Close the surface of the second layer of drywall screws.
Ventilated facades: Key Elements of Designs For additional warming of outdoor structures between the wall and cladding can be installed insulating layer – in this case, in this case ventilation gap is left between the lining and insulation. In the ventilated facade design individual layers are as follows: wall insulation, air gap, the protective screen. Such a scheme is optimal, because layers of different materials are arranged with decreasing indices of their heat, and resistance to water vapor permeability increases from outside to inside. 1. Bearing wall A wall is a fulcrum for system. At the device mounted facade, are essential parameters such as: deviations from the walls vertically and horizontally, "littered" corners that are detected by the method of surveying.
Also of considerable importance is the material of which it is built and its degree of wear (if you have any). 2. substructure construction consists of brackets that attach directly to the wall, and bearing profiles forming the skeletal system, with special fastener elements mounted plate (sheet) tiles. The main purpose of designs is to securely attach a plate coating and insulation to the wall so that the insulation between the panel was finishing the ventilation gap. This excludes adhesives and other "wet" processes, and all connections are made mechanically. 3. Heat and sound insulation layer itself insulating layer protects the wall by alternating freezing and thawing, thus equalizes the temperature fluctuations in the wall and prevents deformation, especially adversely affecting the high-rise buildings. Thermal insulation has other advantages – increases the heat storage capacity of the wall and increases the sound insulation in a wide range of frequencies more than twice.
And the cost of their use can be substantial. But mandatory use of insulated material, most of which ignites much easier to tree, and become toxic when exposed to light – makes this even more significant factor. Wall arbolitovye blocks absolutely incendive. Only prolonged exposure to large temperature can affect arbolitovye blocks. 'Breath' wooden house provided by the passage of air through the micropores of the wood, for many people – an important argument in favor of this particular eco-friendly material. And no wonder – this passive ventilation has a significant influence on the microclimate inside the house, adjusting the amount of moisture in the air and updating a large part of it. But mandatory use of heaters denies all of these amazing properties. Since the spread of noxious particles from insulated materials (and certain types of paints) are particularly pervasive increases the air flow is required to use paroizoliruyuschih films stop air exchange.
Walls of Arbolita also have significant potential for passive ventilation, but since it does not require additional warming – their properties can be fully utilized. Low biological stability of the walls of the wood also remains a major problem: rot, infestation by pests and fungi, the continued aging appearance, cracking, and other unpleasant factors. But in modern construction, this problem is more acute – in the production of logs is largely exposed internal sensitive areas of wood, which greatly fluctuating to external factors. Despite the fact that this problem somehow cope special funds, they must be applied periodically, which leads to greater costs and resources and effort.
Tree in Russia is almost always remained the most used wall materials for personal dacha construction: high heat insulation, the classic appearance of a relatively small cost and highest the degree of environmental friendliness – a long time to make the wood is really the best option. But significant negative qualities of the houses made of wood lot, which together with the incessant increase in the cost and decrease the quality of construction of wooden houses is the basis for the search of better building materials. But, the best substitute for wood, perhaps surprisingly, is the tree itself. Arbol – a modern lightweight concrete on porous aggregates, consisting in 70-85% of wood chips normalized size and mineral binders (cement). It was he who, in principle, a tree, all collected all the outstanding properties of this timber, but not has its negative qualities. In modern building wooden country houses the most famous have laminated board, a simple timber and logs. But the companies made these kinds of materials is rarely designed to build thicker walls thirty centimeters, previously logs of less than fifty centimeters were simply inapplicable in the construction of residential buildings due to significant heat loss.
In Our age is an acceptable tree diameter is virtually unavailable. A desire to retain the value of homes within reasonable limits, rarely allows for even relatively cool, but still produced a log in 30-35 inches. Therefore, the most frequently used is absolutely unacceptable for good homes – with a diameter of 20-25cm.